接口交互场景及联调时间
<p>[pos接口交互图.png](<a href="https://www.showdoc.com.cn/server/api/attachment/visitfile/sign/69802d5d541bff6635dcd19c6d107802">https://www.showdoc.com.cn/server/api/attachment/visitfile/sign/69802d5d541bff6635dcd19c6d107802</a> "[pos接口交互图.png")</p>