sign_data = data + key

class MD5Sign():
    @staticmethod
    def md5_sign(sign_data):
        import hashlib
        if not sign_data:
            raise Exception('sign_data can not be blank.')  #判断是否有数据
        md5 = hashlib.md5()
        md5.update(sign_data.encode('utf-8'))  # 注意转码
        md5_digest = md5.hexdigest()
        # print("md5加密结果:", md5_digest)
        return md5_digest

    @staticmethod
    def md5_verify(verify_data, sign):
        import hashlib
        if not verify_data or not sign:
            raise Exception('verify_data or sign can not be blank.')
        md5 = hashlib.md5()
        md5.update(verify_data.encode('utf-8'))  # 注意转码
        md5_digest = md5.hexdigest()
        return md5_digest == sign