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 callproc(self, procname, params=None):
        result = self._no_monkey.callproc(self, procname, params)
        if transaction_states[self.db.alias]:
            transaction_states[self.db.alias].mark_dirty()
        return result