fix: 修复weight权重在downloader中的效用

src/nicelee/bilibili/downloaders/Downloader.java

@@ -51,6 +51,7 @@ public boolean download(String url, String avId, int qn, int page) {
 					try {
 						this.downloader = downloader.getClass().newInstance();
 						this.downloader.matches(url);
+						break;
 					} catch (InstantiationException | IllegalAccessException e) {
 					}
 				}