def send_message(self, recipient_list, subject, body):
url = '<STR_LIT>'<EOL>recipient = '<STR_LIT:U+002C>'.join(recipient_list)<EOL>data = {<EOL>'<STR_LIT>': recipient,<EOL>'<STR_LIT>': subject,<EOL>'<STR_LIT:body>': body,<EOL>'<STR_LIT>': self._request.cookies.get('<STR_LIT>')<EOL>}<EOL>response = self.request(url, '<STR_LIT>', data=data)<EOL>return response.ok<EOL>
发送站内消息

        :param recipient_list: 收件人列表
        :param subject: 标题
        :param body: 内容（不能超过 1024 个字符）