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 email(self):
        """
        Shortcut property for finding the e-mail address or bot URL.
        """
        if "profile" in self._raw:
            email = self._raw["profile"].get("email")
        elif "bot_url" in self._raw:
            email = self._raw["bot_url"]
        else:
            email = None
        if not email:
            logging.debug("No email found for %s", self._raw.get("name"))
        return email