url解码中文失败很奇怪

Question

stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding
新方法stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLQueryAllowedCharacterSet]

转化：%E8%83%96%E5%93%A5%E4%BF%A9%E8%82%89%E8%9F%B9%E7%85%B2%EF%BC%88%E5%95%86%E5%9F%8E%EF%BC%89
新方法失败，废弃的方法成功，为啥？

Answer 1

因为 stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding与
新方法stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLQueryAllowedCharacterSet] 并不等价。

你可以参考文章：https://blog.csdn.net/zhanglei5415/article/details/131434931