def insertWebsite(self, url, domain):
		'''增加一个网页,标记为未访问,并对相应的domain增加其入度'''
		cur = self.conn.cursor()
		cur.execute("SELECT 1 FROM Domains WHERE domain=?", (domain,))
		result = cur.fetchone()
		if not result:
			# 未有对应domain记录, 先创建domain, 把入度设为1
			if VERBOSE:
				print 'Spot Domain:',domain
			self.insertDomain(domain, indegree=1)
			cur.execute("SELECT did FROM Domains WHERE domain=?", (domain,))
			did = cur.fetchone()[0]
		else:
			did = result[0]
			# 对应的domain记录已经存在, 对其入度+1
			cur.execute("UPDATE Domains SET outdegree=outdegree+1 WHERE domain=?", (domain,))

		cur.execute("INSERT INTO Websites VALUES (NULL,?,?,NULL,0)", (did, url,))
		# 写入到文件
		self.conn.commit()
def add_comment(self):
        """
        Submit a reply to the selected item.

        Selected item:
            Submission - add a top level comment
            Comment - add a comment reply
        """

        data = self.get_selected_item()
        if data['type'] == 'Submission':
            body = data['text']
            reply = data['object'].add_comment
        elif data['type'] == 'Comment':
            body = data['body']
            reply = data['object'].reply
        else:
            self.term.flash()
            return

        # Construct the text that will be displayed in the editor file.
        # The post body will be commented out and added for reference
        lines = ['#  |' + line for line in body.split('\n')]
        content = '\n'.join(lines)
        comment_info = docs.COMMENT_FILE.format(
            author=data['author'],
            type=data['type'].lower(),
            content=content)

        with self.term.open_editor(comment_info) as comment:
            if not comment:
                self.term.show_notification('Canceled')
                return

            with self.term.loader('Posting', delay=0):
                reply(comment)
                # Give reddit time to process the submission
                time.sleep(2.0)

            if self.term.loader.exception is None:
                self.refresh_content()
            else:
                raise TemporaryFileError()