let mapContent = wx.createMapContext('mapId');
    console.log('地图',mapContent,this.selectComponent('#mapId'));
    this.setData({
      mapContent:mapContent
    });
    this.backImgInfo = {
      id:100,
      src:'../../static/scenicspot/1.png',
      visible:true,
      bounds:{
        southwest:{
          longitude:117.949544,
          latitude:36.763938
        },
        northeast:{
          longitude:117.992655,
          latitude:36.809699
        }
      },
      success:() =>{
        console.log("调用成功");
      },
      fail:(e) =>{
        console.log("调用失败11");
      },
      complete(e) {
        console.log("调用失败",e);
      }
    };
    this.data.mapContent.addGroundOverlay(this.backImgInfo);
    console.log('中心点',this.data.mapContent.getCenterLocation());
    let val = {
      name: '景点',
      typeId: '1',
      factp:'1',
      mapIcon:'../../static/scenicspot/icon/jingdian.png',
      src:'../../static/scenicspot/jingqu.png'
    };
    this.getScenicPoint(val);
    //初始化地图对象，叠加手绘地图 end
  }