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 name(self):
        if self._values['name'] is None:
            return None
        name = str(self._values['name']).strip()
        if name == '':
            raise F5ModuleError(
                "You must specify a name for this module"
            )
        return name