官方更新链接：https://developers.weixin.qq.com/community/develop/doc/000e6ae75dcfd0a26250579b066001?highLine=polylinetap

<map id='myMap'
     class="map"
     latitude="{{latitude}}"
     longitude="{{longitude}}"
     scale="{{scale}}"
     enable-3D="{{is3D}}"
     enable-traffic="{{isRealTraffic}}"
     enable-poi="{{isShowPoi}}"
     polyline="{{polyline}}"
     markers="{{markers}}"
     bindpolylinetap="onPolylineTap"
     bindmarkertap="onTapMarker"
     bindcallouttap="onTapMapCallOut">
</map>

Page({
  onPolylineTap(event){
    console.log("onPolylineTap：", event)
  },
  onTapMarker(event) {
    console.log('onTapMarker, event:', event)
  },
  onTapMapCallOut(event) {
    console.log('click map callout, event:', event)
  },
})

如上代码，<map/>组件绑定了了onPolylineTap事件，但是点击路线并不会触发事件函数！！！