我的相关代码如下：

wxml：

<map control="true" class="map" id="locationMap" longitude="{{longitude}}" latitude="{{latitude}}" scale="{{curScale}}" show-location="false" markers="{{markers}}" bindmarkertap="makertap"></map>

js：

app.BeeRequest(null, app.globalData.requestPositions,
          'GET', that,
          function (res) {
            if (res.code == 0) {
              if (res.data && res.data.length > 0) {
                let markers = []
                res.data.forEach((_item,idx) => {
                  let maker = that.createMaker(_item, idx)
                  if (maker) {
                    markers.push(maker)
                  }
                });
                  that.setData({markers})
              } else {
                that.setData({
                  nodata: true
                })
              }
            } else {
              that.setData({
                errTip: res.msg,
                error: true
              })
            }
          }) 

    createMaker(_item, idx) {
      let maker = {}
      maker.id = idx
      maker.longitude = _item.zxjd
      maker.latitude = _item.zxwd
      maker.joinCluster = true
      maker.clusterId = _item.id 
      maker.title = _item.cph
      maker.iconPath = "../../images/car_icon.png" 
      maker.anchor = {x:0.5,y:0.5}
      maker.callout = {content: _item.cph, color: '#ff0c28', borderRadius: 5, borderColor: '#ff0c28', borderWidth: 1, padding: 5, fontSize: 12,
        display: 'ALWAYS', textAlign: 'center', anchorX: 0, anchorY: 35}
      maker.rotate = _item.xsfx
      maker.width = 40
      maker.height = 40  
      return maker;
    },