-
Notifications
You must be signed in to change notification settings - Fork 0
/
index.html
543 lines (366 loc) · 51.7 KB
/
index.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
<!doctype html>
<html class="theme-next use-motion ">
<head>
<meta charset="UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" />
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1"/>
<meta http-equiv="Cache-Control" content="no-transform" />
<meta http-equiv="Cache-Control" content="no-siteapp" />
<link rel="stylesheet" type="text/css" href="/vendors/fancybox/source/jquery.fancybox.css?v=2.1.5"/>
<link href='//fonts.googleapis.com/css?family=Lato:300,400,700,400italic&subset=latin,latin-ext' rel='stylesheet' type='text/css'>
<link rel="stylesheet" type="text/css" href="/css/main.css?v=0.4.5.1"/>
<meta name="description" content="花田喜事 - 我的技术博客" />
<meta name="keywords" content="HTxs, iOS" />
<link rel="shorticon icon" type="image/x-icon" href="/favicon.ico?v=0.4.5.1" />
<meta name="description" content="花田喜事 - 我的技术博客">
<meta property="og:type" content="website">
<meta property="og:title" content="HTxs">
<meta property="og:url" content="http://htxs.me/index.html">
<meta property="og:site_name" content="HTxs">
<meta property="og:description" content="花田喜事 - 我的技术博客">
<meta name="twitter:card" content="summary">
<meta name="twitter:title" content="HTxs">
<meta name="twitter:description" content="花田喜事 - 我的技术博客">
<script type="text/javascript" id="hexo.configuration">
var CONFIG = {
scheme: '',
sidebar: 'post'
};
</script>
<title> HTxs </title>
</head>
<body itemscope itemtype="http://schema.org/WebPage" lang="zh-tw">
<!--[if lte IE 8]>
<div style=' clear: both; height: 59px; padding:0 0 0 15px; position: relative;margin:0 auto;'>
<a href="http://windows.microsoft.com/en-US/internet-explorer/products/ie/home?ocid=ie6_countdown_bannercode">
<img src="http://7u2nvr.com1.z0.glb.clouddn.com/picouterie.jpg" border="0" height="42" width="820"
alt="You are using an outdated browser. For a faster, safer browsing experience, upgrade for free today or use other browser ,like chrome firefox safari."
style='margin-left:auto;margin-right:auto;display: block;'/>
</a>
</div>
<![endif]-->
<div class="container one-column
page-home
">
<div class="headband"></div>
<header id="header" class="header" itemscope itemtype="http://schema.org/WPHeader">
<div class="header-inner"><h1 class="site-meta">
<span class="logo-line-before"><i></i></span>
<a href="/" class="brand" rel="start">
<span class="logo">
<i class="icon-next-logo"></i>
</span>
<span class="site-title">HTxs</span>
</a>
<span class="logo-line-after"><i></i></span>
</h1>
<div class="site-nav-toggle">
<button>
<span class="btn-bar"></span>
<span class="btn-bar"></span>
<span class="btn-bar"></span>
</button>
</div>
<nav class="site-nav">
<ul id="menu" class="menu ">
<li class="menu-item menu-item-home">
<a href="/" rel="section">
<i class="menu-item-icon icon-next-home"></i> <br />
首頁
</a>
</li>
<li class="menu-item menu-item-archives">
<a href="/archives" rel="section">
<i class="menu-item-icon icon-next-archives"></i> <br />
歸檔
</a>
</li>
<li class="menu-item menu-item-categories">
<a href="/categories" rel="section">
<i class="menu-item-icon icon-next-categories"></i> <br />
分類
</a>
</li>
</ul>
</nav>
</div>
</header>
<main id="main" class="main">
<div class="main-inner">
<div id="content" class="content">
<section id="posts" class="posts-expand">
<article class="post post-type-normal " itemscope itemtype="http://schema.org/Article">
<header class="post-header">
<h1 class="post-title" itemprop="name headline">
<a class="post-title-link" href="/2015/10/20/The-Official-See-Objective-C-Style-Guide/" itemprop="url">
The Official See Objective-C Style Guide
</a>
</h1>
<div class="post-meta">
<span class="post-time">
發表於
<time itemprop="dateCreated" datetime="2015-10-20T19:57:59+08:00" content="2015-10-20">
2015-10-20
</time>
</span>
<span class="post-category" >
| 分類於
<span itemprop="about" itemscope itemtype="https://schema.org/Thing">
<a href="/categories/iOS/" itemprop="url" rel="index">
<span itemprop="name">iOS</span>
</a>
</span>
</span>
</div>
</header>
<div class="post-body">
<span itemprop="articleBody"><h1 id="See_官方_Objective-C_风格指南">See 官方 Objective-C 风格指南</h1><p>该代码风格指南适用于 See iOS 研发组。我们做这个风格指南的原因是，iOS 组项目成员逐渐增长。为了保持代码的一致和美观，便于代码的易读性和可维护性。我们参考了 <a href="https://github.com/raywenderlich/objective-c-style-guide" target="_blank" rel="external">raywenderlich.com 官方风格指南</a>。</p>
<h2 id="目录">目录</h2><ul>
<li><a href="#代码组织">代码组织</a></li>
<li><a href="#空格">空格</a></li>
<li><a href="#注释">注释</a></li>
<li><a href="#命名">命名</a></li>
<li><a href="#下划线">下划线</a></li>
<li><a href="#点运算符">点运算符</a></li>
<li><a href="#方法">方法</a></li>
<li><a href="#属性与变量">属性与变量</a></li>
<li><a href="#属性修饰符">属性修饰符</a></li>
<li><a href="#字面量">字面量</a></li>
<li><a href="#常量">常量</a></li>
<li><a href="#枚举类型">枚举类型</a></li>
<li><a href="#case">Case</a></li>
<li><a href="#布尔值">布尔值</a></li>
<li><a href="#条件语句">条件语句</a></li>
<li><a href="#初始化方法">初始化方法</a></li>
<li><a href="#单例">单例</a></li>
</ul>
<h2 id="代码组织">代码组织</h2><p>使用 <code>#pragma mark -</code> 将相关联的方法、协议/代理实现组织为分组，采用以下的通用结构。</p>
<figure class="highlight objc"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br></pre></td><td class="code"><pre><span class="line"><span class="preprocessor">#pragma mark - Lifecycle</span></span><br><span class="line"></span><br><span class="line">- (<span class="keyword">void</span>)dealloc {}</span><br><span class="line">- (instancetype)init {}</span><br><span class="line">- (<span class="keyword">void</span>)viewDidLoad {}</span><br><span class="line">- (<span class="keyword">void</span>)viewWillAppear:(<span class="built_in">BOOL</span>)animated {}</span><br><span class="line">- (<span class="keyword">void</span>)didReceiveMemoryWarning {}</span><br><span class="line"></span><br><span class="line"><span class="preprocessor">#pragma mark - Custom Accessors</span></span><br><span class="line"></span><br><span class="line">- (<span class="keyword">id</span>)customProperty {}</span><br><span class="line">- (<span class="keyword">void</span>)setCustomProperty:(<span class="keyword">id</span>)value {}</span><br><span class="line"></span><br><span class="line"><span class="preprocessor">#pragma mark - Public Methods</span></span><br><span class="line"></span><br><span class="line">- (<span class="keyword">void</span>)publicMethod {}</span><br><span class="line"></span><br><span class="line"><span class="preprocessor">#pragma mark - NSNotification</span></span><br><span class="line"><span class="preprocessor">#pragma mark - Protocol conformance</span></span><br><span class="line"><span class="preprocessor">#pragma mark - UITextFieldDelegate</span></span><br><span class="line"><span class="preprocessor">#pragma mark - UITableViewDataSource</span></span><br><span class="line"><span class="preprocessor">#pragma mark - UITableViewDelegate</span></span><br><span class="line"></span><br><span class="line"><span class="preprocessor">#pragma mark - GestureRecognizer</span></span><br><span class="line"></span><br><span class="line">- (<span class="keyword">void</span>)handleTapGesture:(<span class="built_in">UITapGestureRecognizer</span> *)sender {}</span><br><span class="line"></span><br><span class="line"><span class="preprocessor">#pragma mark - IBActions</span></span><br><span class="line"></span><br><span class="line">- (<span class="keyword">IBAction</span>)submitData:(<span class="keyword">id</span>)sender {}</span><br><span class="line"></span><br><span class="line"><span class="preprocessor">#pragma mark - Private Methods</span></span><br><span class="line"></span><br><span class="line">- (<span class="keyword">void</span>)privateMethod {}</span><br></pre></td></tr></table></figure>
<h2 id="空格">空格</h2><ul>
<li>使用 4 个空格符作为缩进。</li>
<li>方法的大括号应该与方法名左开在同一行，换行右闭。</li>
<li><code>if</code>/<code>else</code>/<code>switch</code>/<code>while</code> 等控制操作符的大括号规则与方法的大括号规则基本一致，但多个分支时，<code>else</code>/<code>else if</code> 需要换行。</li>
</ul>
<p><strong>Preferred:</strong><br><figure class="highlight objc"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br></pre></td><td class="code"><pre><span class="line">- (<span class="keyword">void</span>)someMethod:(User *)user {</span><br><span class="line"> <span class="keyword">if</span> (user<span class="variable">.isHappy</span>) {</span><br><span class="line"> <span class="comment">//Do something</span></span><br><span class="line"> }</span><br><span class="line"> <span class="keyword">else</span> {</span><br><span class="line"> <span class="comment">//Do something else</span></span><br><span class="line"> }</span><br><span class="line">}</span><br></pre></td></tr></table></figure></p>
<p><strong>Not Preferred:</strong><br><figure class="highlight objc"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br></pre></td><td class="code"><pre><span class="line">- (<span class="keyword">void</span>)someMethod:(User *)user</span><br><span class="line">{</span><br><span class="line"> <span class="keyword">if</span> (user<span class="variable">.isHappy</span>)</span><br><span class="line"> {</span><br><span class="line"> <span class="comment">//Do something</span></span><br><span class="line"> }</span><br><span class="line"> <span class="keyword">else</span></span><br><span class="line"> {</span><br><span class="line"> <span class="comment">//Do something else</span></span><br><span class="line"> }</span><br><span class="line">}</span><br></pre></td></tr></table></figure></p>
<ul>
<li>方法声明及方法调用时，方法名之间的空格应该严格按照 <a href="#方法">方法</a> 处的代码规范进行编码。</li>
<li>尽量避免以冒号对齐的方式调用方法，但方法名过长或者超过 (>=) 3 个冒号时，使用冒号对齐来调用该方法可以使代码更易读。<strong>注：</strong> 由于 Xcode 对于 Block 代码块的缩进使得代码难读，所以不要使用冒号对齐的方式来调用此类方法。</li>
</ul>
<p><strong>Preferred:</strong></p>
<figure class="highlight objc"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment">// blocks are easily readable</span></span><br><span class="line">[<span class="built_in">UIView</span> animateWithDuration:<span class="number">1.0</span> animations:^{</span><br><span class="line"> <span class="comment">// something</span></span><br><span class="line">} completion:^(<span class="built_in">BOOL</span> finished) {</span><br><span class="line"> <span class="comment">// something</span></span><br><span class="line">}];</span><br></pre></td></tr></table></figure>
<p><strong>Not Preferred:</strong></p>
<figure class="highlight objc"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment">// colon-aligning makes the block indentation hard to read</span></span><br><span class="line">[<span class="built_in">UIView</span> animateWithDuration:<span class="number">1.0</span></span><br><span class="line"> animations:^{</span><br><span class="line"> <span class="comment">// something</span></span><br><span class="line"> }</span><br><span class="line"> completion:^(<span class="built_in">BOOL</span> finished) {</span><br><span class="line"> <span class="comment">// something</span></span><br><span class="line"> }];</span><br></pre></td></tr></table></figure>
<h2 id="注释">注释</h2><p>只在需要解释为何需要此代码段时，才使用注释。并且保持注释的同步更新，不需要时则删除之。</p>
<p>尽量做到代码即注释，所以应该避免使用块状的注释。通常只需要单行或者少数几行的注释说明该代码段的作用/注意点即可，此时应该使用 <code>//</code> 进行注释。<strong>例外：</strong> 需要生成文档时，使用块状注释。</p>
<h2 id="命名">命名</h2><p>尽量遵循苹果的命名约定，特别是跟 <a href="https://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/MemoryMgmt/Articles/MemoryMgmt.html" target="_blank" rel="external">内存管理</a> (<a href="http://stackoverflow.com/a/2865194/340508" target="_blank" rel="external">NARC</a>) 相关的规则。</p>
<p>带自描述的方法名或变量名总是比较好的，尽管它比较冗余。</p>
<p><strong>Preferred:</strong></p>
<figure class="highlight objc"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line"><span class="built_in">UIButton</span> *settingsButton;</span><br></pre></td></tr></table></figure>
<p><strong>Not Preferred:</strong></p>
<figure class="highlight objc"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line"><span class="built_in">UIButton</span> *setBut;</span><br></pre></td></tr></table></figure>
<p>类名以及常量应该带上具有标志性的前缀，于我们公司而言，’See’ 就是不错的选择。</p>
<p>常量应该采用驼峰形式，将所有首字母大写，并且带上相关联的类名更清晰地表明场景用途。</p>
<p><strong>Preferred:</strong></p>
<figure class="highlight objc"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">static</span> <span class="built_in">CGFloat</span> <span class="keyword">const</span> kPOPAnimationDurationDefault = <span class="number">0.4</span>;</span><br></pre></td></tr></table></figure>
<p><strong>Not Preferred:</strong></p>
<figure class="highlight objc"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">static</span> <span class="built_in">CGFloat</span> <span class="keyword">const</span> animationTime = <span class="number">0.4</span>;</span><br></pre></td></tr></table></figure>
<p>属性也是采用驼峰形式，只是首字母小写。对于属性应该尽量使用自动合成而非手动使用 @synthesize 语句合成，除非在需要的情况下。</p>
<p><strong>Preferred:</strong></p>
<figure class="highlight objc"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">@property</span> (<span class="keyword">nonatomic</span>, <span class="keyword">strong</span>) <span class="built_in">NSString</span> *descriptiveVariableName;</span><br></pre></td></tr></table></figure>
<p><strong>Not Preferred:</strong></p>
<figure class="highlight objc"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">id</span> varnm;</span><br></pre></td></tr></table></figure>
<h2 id="下划线">下划线</h2><p>使用属性时，尽量使用点运算符 <code>self.</code> ，因为有时候在 getters/setters 中有特殊的处理，例如延迟加载等。</p>
<p>但是在初始化方法、getters/setters 方法体内需要谨慎使用，避免潜在的负面效果，例如方法循环调用等。</p>
<p>局部变量不需要使用下划线（部分开发者定义局部变量时，喜欢以下划线开头）。项目中常用的 <code>weak_self</code> 也建议慢慢修改为 <code>weakSelf</code></p>
<h2 id="点运算符">点运算符</h2><p>点运算符是纯粹地封装了方法调用，便于访问。当使用点运算符时，属性仍然是通过 getter 和 setter 进行访问和设值的。更多信息请查看 <a href="https://developer.apple.com/library/ios/documentation/cocoa/conceptual/ProgrammingWithObjectiveC/EncapsulatingData/EncapsulatingData.html" target="_blank" rel="external">此处</a> 文档。</p>
<p>为了使代码更加简洁，应该 <strong>始终</strong> 使用点运算符访问属性和为属性设值，其它类型的方法调用则采用中括号的形式。</p>
<p><strong>Preferred:</strong><br><figure class="highlight objc"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre></td><td class="code"><pre><span class="line"><span class="built_in">NSInteger</span> arrayCount = [<span class="keyword">self</span><span class="variable">.array</span> count];</span><br><span class="line">view<span class="variable">.backgroundColor</span> = [<span class="built_in">UIColor</span> orangeColor];</span><br><span class="line">[<span class="built_in">UIApplication</span> sharedApplication]<span class="variable">.delegate</span>;</span><br></pre></td></tr></table></figure></p>
<p><strong>Not Preferred:</strong><br><figure class="highlight objc"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre></td><td class="code"><pre><span class="line"><span class="built_in">NSInteger</span> arrayCount = <span class="keyword">self</span><span class="variable">.array</span><span class="variable">.count</span>;</span><br><span class="line">[view setBackgroundColor:[<span class="built_in">UIColor</span> orangeColor]];</span><br><span class="line"><span class="built_in">UIApplication</span><span class="variable">.sharedApplication</span><span class="variable">.delegate</span>;</span><br></pre></td></tr></table></figure></p>
<h2 id="方法">方法</h2><p>方法声明中，空格符的要求：</p>
<ul>
<li>方法类型（-/+ 符号）前不需要空格</li>
<li>方法类型（-/+ 符号）后需要一个空格</li>
<li>返回值与方法名之间不需要空格</li>
<li>方法名与冒号分隔符之间不需要空格</li>
<li>冒号与参数类型之间不需要空格</li>
<li>参数类型与参数名之间不需要空格</li>
<li>参数类型，指针标识符 <code>*</code> 与类型名之间需要一个空格</li>
<li>方法名的各分段之间需要一个空格</li>
</ul>
<p>“and” 是保留词，不应该单独使用它作为多参数的分段方法名。下面的例子中可以看出空格的使用规范，方法名的命名规范等。</p>
<p><strong>Preferred:</strong><br><figure class="highlight objc"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br></pre></td><td class="code"><pre><span class="line">- (<span class="keyword">void</span>)setExampleText:(<span class="built_in">NSString</span> *)text image:(<span class="built_in">UIImage</span> *)image;</span><br><span class="line">- (<span class="keyword">void</span>)sendAction:(SEL)aSelector to:(<span class="keyword">id</span>)anObject forAllCells:(<span class="built_in">BOOL</span>)flag;</span><br><span class="line">- (<span class="keyword">id</span>)viewWithTag:(<span class="built_in">NSInteger</span>)tag;</span><br><span class="line">- (instancetype)initWithWidth:(<span class="built_in">CGFloat</span>)width height:(<span class="built_in">CGFloat</span>)height;</span><br></pre></td></tr></table></figure></p>
<p><strong>Not Preferred:</strong></p>
<figure class="highlight objc"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br></pre></td><td class="code"><pre><span class="line">-(<span class="keyword">void</span>)setT:(<span class="built_in">NSString</span> *)text i:(<span class="built_in">UIImage</span> *)image;</span><br><span class="line">- (<span class="keyword">void</span>) sendAction:(SEL)aSelector :(<span class="keyword">id</span>)anObject :(<span class="built_in">BOOL</span>)flag;</span><br><span class="line">- (<span class="keyword">id</span>)taggedView: (<span class="built_in">NSInteger</span>)tag;</span><br><span class="line">- (instancetype)initWithWidth:(<span class="built_in">CGFloat</span>) width andHeight:(<span class="built_in">CGFloat</span>)height;</span><br><span class="line">- (instancetype)initWith:(<span class="keyword">int</span>)width and:(<span class="keyword">int</span>)height; <span class="comment">// Never do this.</span></span><br></pre></td></tr></table></figure>
<h2 id="属性与变量">属性与变量</h2><p>业界中关于属性与实例变量的争论一直都存在，各有拥护者，我们就不参与争论了。我更坚持使用属性，除非你有更好的理由使用实例变量。</p>
<p><strong>Preferred:</strong></p>
<figure class="highlight objc"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br></pre></td><td class="code"><pre><span class="line"><span class="class"><span class="keyword">@interface</span> <span class="title">SeeThemeModel</span> : <span class="title">NSObject</span></span></span><br><span class="line"></span><br><span class="line"><span class="keyword">@property</span> (<span class="keyword">copy</span>, <span class="keyword">nonatomic</span>) <span class="built_in">NSString</span> *themeTitle;</span><br><span class="line"></span><br><span class="line"><span class="keyword">@end</span></span><br></pre></td></tr></table></figure>
<p><strong>Not Preferred:</strong></p>
<figure class="highlight objc"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre></td><td class="code"><pre><span class="line"><span class="class"><span class="keyword">@interface</span> <span class="title">SeeThemeModel</span> : <span class="title">NSObject</span> </span>{</span><br><span class="line"> <span class="built_in">NSString</span> *themeTitle;</span><br><span class="line">}</span><br></pre></td></tr></table></figure>
<h2 id="属性修饰符">属性修饰符</h2><p>考虑到从 Interface Builder 连接 IBOutlet 时自动产生的代码中，属性修饰符的顺序是内存管理在先，原子性在后，所以优先使用该顺序。再考虑到原子性在先，内存管理在后的话，可以更好的代码对齐，所以此顺序也是可以接受的。只需要保证同一个文件的属性修饰符顺序一致即可。</p>
<p><strong>Preferred:</strong></p>
<figure class="highlight objc"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">@property</span> (<span class="keyword">weak</span>, <span class="keyword">nonatomic</span>) <span class="keyword">IBOutlet</span> <span class="built_in">UIView</span> *containerView;</span><br><span class="line"><span class="keyword">@property</span> (<span class="keyword">strong</span>, <span class="keyword">nonatomic</span>) <span class="built_in">NSString</span> *tutorialName;</span><br></pre></td></tr></table></figure>
<p><strong>Not Preferred:</strong></p>
<figure class="highlight objc"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">@property</span> (<span class="keyword">weak</span>, <span class="keyword">nonatomic</span>) <span class="keyword">IBOutlet</span> <span class="built_in">UIView</span> *containerView;</span><br><span class="line"><span class="keyword">@property</span> (<span class="keyword">nonatomic</span>, <span class="keyword">strong</span>) <span class="built_in">NSString</span> *tutorialName;</span><br></pre></td></tr></table></figure>
<p>属性类型包括可变和不可变版本时（例如：NSString），优先使用 <code>copy</code> 而不是 <code>strong</code>。为什么呢？因为你即使定义了 <code>NSString</code> 的属性，但外界仍然可以传递 <code>NSMutableString</code> 的实例，所以外界可能会修改该属性，而你很难察觉。</p>
<p><strong>Preferred:</strong></p>
<figure class="highlight objc"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">@property</span> (<span class="keyword">copy</span>, <span class="keyword">nonatomic</span>) <span class="built_in">NSString</span> *tutorialName;</span><br></pre></td></tr></table></figure>
<p><strong>Not Preferred:</strong></p>
<figure class="highlight objc"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">@property</span> (<span class="keyword">strong</span>, <span class="keyword">nonatomic</span>) <span class="built_in">NSString</span> *tutorialName;</span><br></pre></td></tr></table></figure>
<h2 id="字面量">字面量</h2><p><code>NSString</code>，<code>NSDictionary</code>，<code>NSArray</code>，和 <code>NSNumber</code> 可以使用字面量创建不可变的实例对象。特别注意：使用 <code>NSArray</code> 和 <code>NSDictionary</code> 的字面量时，值为 <code>nil</code> 时，会导致崩溃。</p>
<p><strong>Preferred:</strong></p>
<figure class="highlight objc"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br></pre></td><td class="code"><pre><span class="line"><span class="built_in">NSArray</span> *names = @[<span class="string">@"Brian"</span>, <span class="string">@"Matt"</span>, <span class="string">@"Chris"</span>, <span class="string">@"Alex"</span>, <span class="string">@"Steve"</span>, <span class="string">@"Paul"</span>];</span><br><span class="line"><span class="built_in">NSDictionary</span> *productManagers = @{<span class="string">@"iPhone"</span>: <span class="string">@"Kate"</span>, <span class="string">@"iPad"</span>: <span class="string">@"Kamal"</span>, <span class="string">@"Mobile Web"</span>: <span class="string">@"Bill"</span>};</span><br><span class="line"><span class="built_in">NSNumber</span> *shouldUseLiterals = @YES;</span><br><span class="line"><span class="built_in">NSNumber</span> *buildingStreetNumber = @<span class="number">10018</span>;</span><br></pre></td></tr></table></figure>
<p><strong>Not Preferred:</strong></p>
<figure class="highlight objc"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br></pre></td><td class="code"><pre><span class="line"><span class="built_in">NSArray</span> *names = [<span class="built_in">NSArray</span> arrayWithObjects:<span class="string">@"Brian"</span>, <span class="string">@"Matt"</span>, <span class="string">@"Chris"</span>, <span class="string">@"Alex"</span>, <span class="string">@"Steve"</span>, <span class="string">@"Paul"</span>, <span class="literal">nil</span>];</span><br><span class="line"><span class="built_in">NSDictionary</span> *productManagers = [<span class="built_in">NSDictionary</span> dictionaryWithObjectsAndKeys: <span class="string">@"Kate"</span>, <span class="string">@"iPhone"</span>, <span class="string">@"Kamal"</span>, <span class="string">@"iPad"</span>, <span class="string">@"Bill"</span>, <span class="string">@"Mobile Web"</span>, <span class="literal">nil</span>];</span><br><span class="line"><span class="built_in">NSNumber</span> *shouldUseLiterals = [<span class="built_in">NSNumber</span> numberWithBool:<span class="literal">YES</span>];</span><br><span class="line"><span class="built_in">NSNumber</span> *buildingStreetNumber = [<span class="built_in">NSNumber</span> numberWithInteger:<span class="number">10018</span>];</span><br></pre></td></tr></table></figure>
<h2 id="常量">常量</h2><p>常量用于定义在程序运行期间不被修改的、固定的值，便于修改相关联的值时，无需查找和替换项目中各处的代码。虽然使用 <code>#define</code> 可以达到相同的目的，但宏定义方式没有强类型，而 <code>static</code> <code>const</code> 具有强类型，具有类型安全的优势。所以应该使用 <code>static</code> <code>const</code> 定义常量。</p>
<p><strong>Preferred:</strong></p>
<figure class="highlight objc"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">static</span> <span class="built_in">NSString</span> * <span class="keyword">const</span> SeeAboutViewControllerCompanyName = <span class="string">@"See"</span>;</span><br><span class="line"></span><br><span class="line"><span class="keyword">static</span> <span class="built_in">CGFloat</span> <span class="keyword">const</span> kPOPAnimationDurationDefault = <span class="number">0.4</span>;</span><br></pre></td></tr></table></figure>
<p><strong>Not Preferred:</strong></p>
<figure class="highlight objc"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre></td><td class="code"><pre><span class="line"><span class="preprocessor">#define CompanyName @<span class="title">"See"</span></span></span><br><span class="line"></span><br><span class="line"><span class="preprocessor">#define defaultAnimationDuration 0.4</span></span><br></pre></td></tr></table></figure>
<h2 id="枚举类型">枚举类型</h2><p>当定义枚举类型时，推荐使用新的枚举类型定义语法 <code>NS_ENUM</code>，因为编译器会对它进行强类型检查。</p>
<p><strong>For Example:</strong></p>
<figure class="highlight objc"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">typedef</span> <span class="built_in">NS_ENUM</span>(<span class="built_in">NSInteger</span>, SeeSharePlatformType) {</span><br><span class="line"> SeeSharePlatformTypeWeixin,</span><br><span class="line"> SeeSharePlatformTypeQQ,</span><br><span class="line"> SeeSharePlatformTypeWeibo</span><br><span class="line">};</span><br></pre></td></tr></table></figure>
<p><code>NS_ENUM</code> 也可以指定枚举值。</p>
<figure class="highlight objc"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">typedef</span> <span class="built_in">NS_ENUM</span>(<span class="built_in">NSInteger</span>, TTTAttributedLabelVerticalAlignment) {</span><br><span class="line"> TTTAttributedLabelVerticalAlignmentCenter = <span class="number">0</span>,</span><br><span class="line"> TTTAttributedLabelVerticalAlignmentTop = <span class="number">1</span>,</span><br><span class="line"> TTTAttributedLabelVerticalAlignmentBottom = <span class="number">2</span></span><br><span class="line">};</span><br></pre></td></tr></table></figure>
<p>旧式的枚举定义 <code>enum</code> 不再建议使用，除非用于 CoreFoundation C 代码中。</p>
<p><strong>Not Preferred:</strong></p>
<figure class="highlight objc"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">enum</span> GlobalConstants {</span><br><span class="line"> kMaxPinSize = <span class="number">5</span>,</span><br><span class="line"> kMaxPinCount = <span class="number">500</span>,</span><br><span class="line">};</span><br></pre></td></tr></table></figure>
<h2 id="Case">Case</h2><p>Case 语句的括号不是必须的，当 case 语句只包含一行时，可以不用括号。当 case 语句包含多行时，需要加上括号。</p>
<figure class="highlight objc"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">switch</span> (condition) {</span><br><span class="line"> <span class="keyword">case</span> <span class="number">1</span>:</span><br><span class="line"> <span class="comment">// ...</span></span><br><span class="line"> <span class="keyword">break</span>;</span><br><span class="line"> <span class="keyword">case</span> <span class="number">2</span>: {</span><br><span class="line"> <span class="comment">// ...</span></span><br><span class="line"> <span class="comment">// Multi-line example using braces</span></span><br><span class="line"> <span class="keyword">break</span>;</span><br><span class="line"> }</span><br><span class="line"> <span class="keyword">case</span> <span class="number">3</span>:</span><br><span class="line"> <span class="comment">// ...</span></span><br><span class="line"> <span class="keyword">break</span>;</span><br><span class="line"> <span class="keyword">default</span>: </span><br><span class="line"> <span class="comment">// ...</span></span><br><span class="line"> <span class="keyword">break</span>;</span><br><span class="line">}</span><br></pre></td></tr></table></figure>
<p>当多个 case 语句等效，需要多个 case 语句执行相同的代码块时，去掉对应的 “break” 语句即可。此时应该清晰的注释为何此处需要等效处理，避免后期无法维护。</p>
<figure class="highlight objc"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">switch</span> (condition) {</span><br><span class="line"> <span class="keyword">case</span> <span class="number">1</span>:</span><br><span class="line"> <span class="comment">// ** fall-through! **</span></span><br><span class="line"> <span class="keyword">case</span> <span class="number">2</span>:</span><br><span class="line"> <span class="comment">// code executed for values 1 and 2</span></span><br><span class="line"> <span class="keyword">break</span>;</span><br><span class="line"> <span class="keyword">default</span>: </span><br><span class="line"> <span class="comment">// ...</span></span><br><span class="line"> <span class="keyword">break</span>;</span><br><span class="line">}</span><br></pre></td></tr></table></figure>
<p>使用枚举类型作为 “switch” 条件时，不需要 “default” 语句。</p>
<figure class="highlight objc"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br></pre></td><td class="code"><pre><span class="line">SeeSharePlatformType platformType = SeeSharePlatformTypeWeixin;</span><br><span class="line"></span><br><span class="line"><span class="keyword">switch</span> (platformType) {</span><br><span class="line"> <span class="keyword">case</span> SeeSharePlatformTypeWeixin:</span><br><span class="line"> <span class="comment">// ...</span></span><br><span class="line"> <span class="keyword">break</span>;</span><br><span class="line"> <span class="keyword">case</span> SeeSharePlatformTypeQQ:</span><br><span class="line"> <span class="comment">// ...</span></span><br><span class="line"> <span class="keyword">break</span>;</span><br><span class="line"> <span class="keyword">case</span> SeeSharePlatformTypeWeibo:</span><br><span class="line"> <span class="comment">// ...</span></span><br><span class="line"> <span class="keyword">break</span>;</span><br><span class="line">}</span><br></pre></td></tr></table></figure>
<h2 id="布尔值">布尔值</h2><p>Objective-C 中采用 <code>YES</code> 和 <code>NO</code>。而 <code>true</code> 和 <code>false</code> 只用于 CoreFoundation，C 或者 C++ 中。</p>
<p>因为 <code>nil</code> 和 <code>NO</code> 等价，所以没有必要在条件语句中比较 <code>nil</code> 和 <code>NO</code>。</p>
<p>不要将其它类型的值与 <code>YES</code> 直接比较，因为 <code>YES</code> 定义为 1，而一个 <code>BOOL</code> 值可以有 8 bits。</p>
<p><strong>Preferred:</strong></p>
<figure class="highlight objc"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">if</span> (someObject) {}</span><br><span class="line"><span class="keyword">if</span> (![anotherObject boolValue]) {}</span><br></pre></td></tr></table></figure>
<p><strong>Not Preferred:</strong></p>
<figure class="highlight objc"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">if</span> (someObject != <span class="literal">nil</span>) {}</span><br><span class="line"><span class="keyword">if</span> ([anotherObject boolValue] == <span class="literal">NO</span>) {}</span><br><span class="line"><span class="keyword">if</span> (isAwesome == <span class="literal">YES</span>) {} <span class="comment">// Never do this.</span></span><br><span class="line"><span class="keyword">if</span> (isAwesome == <span class="literal">true</span>) {} <span class="comment">// Never do this.</span></span><br></pre></td></tr></table></figure>
<p>如果一个 <code>BOOL</code> 类型的属性，可根据情况省略 “is” 前缀，并且指明 getter 方法，比如：</p>
<figure class="highlight objc"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">@property</span> (<span class="keyword">assign</span>, getter=isEditable) <span class="built_in">BOOL</span> editable;</span><br></pre></td></tr></table></figure>
<p>更多信息请参考 <a href="https://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/CodingGuidelines/Articles/NamingIvarsAndTypes.html#//apple_ref/doc/uid/20001284-BAJGIIJE" target="_blank" rel="external">Cocoa Naming Guidelines</a>。</p>
<h2 id="条件语句">条件语句</h2><p>为避免出错，条件语句的方法体应该总是使用大括号包裹，即便方法体中只有一个语句。这样一来，更容易理解所有的条件分支，也更容易发现错误所在。反之，期望在条件语句后追加一句代码，但这句代码其实已经超出了该条件的范围了，很容易触发逻辑错误。这里应该有个 <a href="http://programmers.stackexchange.com/a/16530" target="_blank" rel="external">案例</a>。</p>
<p><strong>Preferred:</strong><br><figure class="highlight objc"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">if</span> (!error) {</span><br><span class="line"> <span class="keyword">return</span> success;</span><br><span class="line">}</span><br></pre></td></tr></table></figure></p>
<p><strong>Not Preferred:</strong><br><figure class="highlight objc"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">if</span> (!error)</span><br><span class="line"> <span class="keyword">return</span> success;</span><br></pre></td></tr></table></figure></p>
<p>or</p>
<figure class="highlight objc"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">if</span> (!error) <span class="keyword">return</span> success;</span><br></pre></td></tr></table></figure>
<h2 id="初始化方法">初始化方法</h2><p>初始化方法应遵循苹果的代码模板，返回类型应使用 <code>instancetype</code> 而避免使用 <code>id</code> 。</p>
<figure class="highlight objc"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br></pre></td><td class="code"><pre><span class="line">- (instancetype)init {</span><br><span class="line"> <span class="keyword">self</span> = [<span class="keyword">super</span> init];</span><br><span class="line"> <span class="keyword">if</span> (<span class="keyword">self</span>) {</span><br><span class="line"> <span class="comment">// ...</span></span><br><span class="line"> }</span><br><span class="line"> <span class="keyword">return</span> <span class="keyword">self</span>;</span><br><span class="line">}</span><br></pre></td></tr></table></figure>
<h2 id="单例">单例</h2><p>单例对象需要采用线程安全的方式创建共享实例，最佳实践是采用 GCD <code>dispatch_once</code> 方法创建单例。</p>
<figure class="highlight objc"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br></pre></td><td class="code"><pre><span class="line">+ (instancetype)sharedInstance {</span><br><span class="line"> <span class="keyword">static</span> <span class="keyword">id</span> sharedInstance = <span class="literal">nil</span>;</span><br><span class="line"> <span class="keyword">static</span> <span class="built_in">dispatch_once_t</span> onceToken;</span><br><span class="line"></span><br><span class="line"> <span class="built_in">dispatch_once</span>(&onceToken, ^{</span><br><span class="line"> sharedInstance = [[<span class="keyword">self</span> alloc] init];</span><br><span class="line"> });</span><br><span class="line"></span><br><span class="line"> <span class="keyword">return</span> sharedInstance;</span><br><span class="line">}</span><br></pre></td></tr></table></figure>
<h1 id="其它的风格指南">其它的风格指南</h1><ul>
<li><a href="https://github.com/raywenderlich/objective-c-style-guide" target="_blank" rel="external">Raywenderlich.com</a></li>
<li><a href="https://github.com/RobotsAndPencils/objective-c-style-guide" target="_blank" rel="external">Robots & Pencils</a></li>
<li><a href="https://github.com/NYTimes/objective-c-style-guide" target="_blank" rel="external">New York Times</a></li>
<li><a href="http://google-styleguide.googlecode.com/svn/trunk/objcguide.xml" target="_blank" rel="external">Google</a></li>
<li><a href="https://github.com/github/objective-c-conventions" target="_blank" rel="external">GitHub</a></li>
<li><a href="https://trac.adium.im/wiki/CodingStyle" target="_blank" rel="external">Adium</a></li>
<li><a href="https://gist.github.com/soffes/812796" target="_blank" rel="external">Sam Soffes</a></li>
<li><a href="http://cocoadevcentral.com/articles/000082.php" target="_blank" rel="external">CocoaDevCentral</a></li>
<li><a href="http://lukeredpath.co.uk/blog/my-objective-c-style-guide.html" target="_blank" rel="external">Luke Redpath</a></li>
<li><a href="http://www.cimgf.com/zds-code-style-guide/" target="_blank" rel="external">Marcus Zarra</a></li>
</ul>
</span>
</div>
<footer class="post-footer">
<div class="post-eof"></div>
</footer>
</article>
</section>
</div>
</div>
<div class="sidebar-toggle">
<div class="sidebar-toggle-line-wrap">
<span class="sidebar-toggle-line sidebar-toggle-line-first"></span>
<span class="sidebar-toggle-line sidebar-toggle-line-middle"></span>
<span class="sidebar-toggle-line sidebar-toggle-line-last"></span>
</div>
</div>
<aside id="sidebar" class="sidebar">
<div class="sidebar-inner">
<section class="site-overview">
<div class="site-author motion-element" itemprop="author" itemscope itemtype="http://schema.org/Person">
<img class="site-author-image" src="/uploads/avatar.jpg" alt="田 杰" itemprop="image"/>
<p class="site-author-name" itemprop="name">田 杰</p>
</div>
<p class="site-description motion-element" itemprop="description">花田喜事 - 我的技术博客</p>
<nav class="site-state motion-element">
<div class="site-state-item site-state-posts">
<a href="/archives">
<span class="site-state-item-count">1</span>
<span class="site-state-item-name">文章</span>
</a>
</div>
<div class="site-state-item site-state-categories">
<a href="/categories">
<span class="site-state-item-count">1</span>
<span class="site-state-item-name">分類</span>
</a>
</div>
<div class="site-state-item site-state-tags">
<span class="site-state-item-count">2</span>
<span class="site-state-item-name">標籤</span>
</div>
</nav>
<div class="links-of-author motion-element">
</div>
<div class="links-of-author motion-element">
</div>
</section>
</div>
</aside>
</main>
<footer id="footer" class="footer">
<div class="footer-inner"> <div class="copyright" >
©
<span itemprop="copyrightYear">2015</span>
<span class="with-love">
<i class="icon-next-heart"></i>
</span>
<span class="author" itemprop="copyrightHolder">田 杰</span>
</div>
<div class="powered-by">
由 <a class="theme-link" href="http://hexo.io">Hexo</a> 強力驅動
</div>
<div class="theme-info">
主題 -
<a class="theme-link" href="https://github.com/iissnan/hexo-theme-next">
NexT
</a>
</div>
</div>
</footer>
<div class="back-to-top"></div>
</div>
<script type="text/javascript" src="/vendors/jquery/index.js?v=2.1.3"></script>
<script type="text/javascript" src="/vendors/fancybox/source/jquery.fancybox.pack.js"></script>
<script type="text/javascript" src="/js/fancy-box.js?v=0.4.5.1"></script>
<script type="text/javascript" src="/js/helpers.js?v=0.4.5.1"></script>
<script type="text/javascript" src="/vendors/velocity/velocity.min.js"></script>
<script type="text/javascript" src="/vendors/velocity/velocity.ui.min.js"></script>
<script type="text/javascript" src="/js/motion_global.js?v=0.4.5.1" id="motion.global"></script>
<script type="text/javascript" src="/js/nav-toggle.js?v=0.4.5.1"></script>
<script type="text/javascript" src="/vendors/fastclick/lib/fastclick.min.js?v=1.0.6"></script>
<script type="text/javascript">
$(document).ready(function () {
if (CONFIG.sidebar === 'always') {
displaySidebar();
}
if (isMobile()) {
FastClick.attach(document.body);
}
});
</script>
<script type="text/javascript" src="/js/lazyload.js"></script>
<script type="text/javascript">
$(function () {
$("#posts").find('img').lazyload({
placeholder: "/images/loading.gif",
effect: "fadeIn"
});
});
</script>
</body>
</html>