这类的状态码代表了客户端看起来可能发生了错误，妨碍了服务器的处理。

The 4xx class of status code is intended for cases in which the client seems to have erred.

youdao

这类的状态码代表了客户端看起来可能发生了错误，妨碍了服务器的处理。

The 4xx class of status code is intended for cases in which the client seems to have erred.

youdao