import os,sys,re,json
import mysql

class Db():
    '''Db接口'''
    def __init__(self):
        pass
    def save(domain:str, res:bool):
        pass

class File(Db):
    def save(domain: str, res: bool):
        return super().save(res)

class Mysql(Db):
    def save(domain: str, res: bool):
        return super().save(res)