@author jackzhenguo
@desc
@date 2019/2/15
字符串转换为字节类型
In [12]: s = "apple"
In [13]: a = bytes(s,encoding='utf-8')
In [14] a
Out[14]: b'apple'
# 转化后a变为字节序列,bytes类型,
# 并且每个字符都被转化为数值,如下所示
In [15]: for i in a:
...: print(i)
97
112
112
108
101