微信公众号网页中打开高德地图

toDaohang(point){
      let that = this
      //打开高德
       Dialog.confirm({
        title: '',
        message: '打开高德地图',
      })
        .then(() => {
          let str  = []
          if(point!=''){
            str = point.split('(')[1].replace(')','').split(' ')
            let url = ''
            if(that.fromLon != '' && that.fromLat != ''){
　　　　　　　　　
              url = `https://uri.amap.com/navigation?from=${that.fromLon},${that.fromLat},我的位置&to=${str[0]},${str[1]},目的地,1&mode=car&policy=0&src=mypage&coordinate=gaode&callnative=1`
            }else{
              url = `https://uri.amap.com/navigation?to=${str[0]|| ''},${str[1]},目的地,1&mode=car&policy=0&src=mypage&coordinate=gaode&callnative=1`
            }
            window.open(url)
          }else{
            Toast('未设置位置坐标');
          }
        })
        .catch(() => {
          // on cancel
        });
    },

//获取坐标
    getLocation() {
      var options = {
        enableHighAccuracy: true,
        maximumAge: 1000,
      };
      if (navigator.geolocation) {
        //浏览器支持geolocation
        navigator.geolocation.getCurrentPosition(
          this.onSuccess,
          this.onError,
          options
        );
      } else {
        //浏览器不支持geolocation
        // $("#div").append("<p>您的浏览器不支持地理位置定位</p>");
      }
    },
    onSuccess(position) {
      var longitude = position.coords.longitude;
      var latitude = position.coords.latitude;this.fromLon = longitude
      this.fromLat = latitude
    },
    onError(error) {
      console.log(1)

      switch (error.code) {
        case 1:
          console.log("位置服务被拒绝");
          break;
        case 2:
          console.log("暂时获取不到位置信息");
          break;
        case 3:
          console.log("获取信息超时");
          break;
        case 4:
          console.log("未知错误");
          break;
      }
    },