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 deserialize(self, value):
        value = decode(value)
        if "\n" in value:
            values = re.split(r"\s*\n\s*", value)
        else:
            values = re.split(r"\s*,\s*", value)
        values = tuple(v.strip() for v in values if v.strip())
        validators.validate_required(values, self._required)
        return tuple(values)