自定义异常

class RequestParamsError(Exception):
    zh_err_msg = {'code': 500, 'message': '请求参数错误'}
    zh_message = "请求参数错误"

    def __init__(self, err_msg=None, zh_message=None, code=500):
        if err_msg:
            self.err_msg = err_msg
        if zh_message:
            self.zh_message = zh_message
        if code:
            self.code = code

        # self.zh_err_msg = {'code': 500, 'message': '请求参数错误'}
        # self.zh_message = "请求参数错误" + err_msg
        # Exception.__init__(self, self.err_msg, self.err_msg_detail)
        super(RequestParamsError, self).__init__(self.err_msg, self.zh_message, self.code)


def try_test():
    x = "aaaaaa"
    try:
        y = int(x)
    except Exception as ep:
        raise RequestParamsError(err_msg=str(ep), zh_message="请求参数错误.", code=400)


if __name__ == "__main__":
    try:
        try_test()
    except RequestParamsError as err:  # 当抛出的异常是“自定义异常”时执行此语句
        print(err.err_msg)
        print(err.zh_message)
        print(err.code)