def insertDomain(self, domain, indegree=0, outdegree=0):
		'''增加一个域名'''
		cur = self.conn.cursor()
		cur.execute("INSERT INTO Domains VALUES (NULL,?,?,?)", (domain, indegree, outdegree))
		# 写入到文件中
		self.conn.commit()
def _format_exception_message(cls, msg, pid):
        return cls._EXCEPTION_LOG_FORMAT.format(
            timestamp=cls._iso_timestamp_for_now(),
            process_title=setproctitle.getproctitle(),
            args=sys.argv,
            pid=pid,
            message=msg,
        )