iOS 网络加载转码

网络连接中有中文转码

NSString * encodingString = [stringstringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

返回的数据中有%23……转码

NSString *msg = [str stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];