传运单接口 trace_waybill 和传运单接口 follow_waybill 有啥区别啊
查看文档发现两个跟踪运单的接口功能都基本一模一样 https://developers.weixin.qq.com/miniprogram/dev/platform-capabilities/industry/express/business/express_search.html#%E4%BC%A0%E8%BF%90%E5%8D%95%E6%8E%A5%E5%8F%A3-trace-waybill https://developers.weixin.qq.com/miniprogram/dev/platform-capabilities/industry/express-old/express_open_msg.html#%E5%9B%9B%E3%80%81%E6%8E%A5%E5%8F%A3%E5%88%97%E8%A1%A8
