[心跳接口](%E5%BF%83%E8%B7%B3%E6%8E%A5%E5%8F%A3.md) [验票接口](%E9%AA%8C%E7%A5%A8%E6%8E%A5%E5%8F%A3.md) [命令码接口](%E5%91%BD%E4%BB%A4%E7%A0%81%E6%8E%A5%E5%8F%A3.md) [购票接口](%E8%B4%AD%E7%A5%A8%E6%8E%A5%E5%8F%A3.md) [接口规范](%E6%8E%A5%E5%8F%A3%E8%A7%84%E8%8C%83.md)