1.涉及到pymysql的数据连接编码格式设定如果是utf-8格式的,请必须设置为charset="utf8" (不要问凌晨三点的我怎么知道的)
self.db = pymysql.connect(self.host,self.user,self.password,self.database,charset="utf8",port=self.port)
self.db = pymysql.connect(self.host,self.user,self.password,self.database,charset="utf8",port=self.port)