search: function (res) {
  var type = e.target.dataset.type;
  this.nearbySearch(type);
}
nearbySearch: function (res) {
  var location = this.data.latitude + ',' + this.data.longitude
  let _this = this;
  qqmapsdk.search({
    keyword: keyword,
    location: location,  
    success: function (res) {
      var markers = [];
      for (var i = 0; i < res.data.length; i++) {
        markers.push({
          title: res.data[i].location.lat,
          id: res.data[i].id,
          latitude: res.data[i].location.lat,
          longitude: res.data[i].location.lng,
          iconPath: "images/location.png",
          width: 20,
          height: 20,
          callout: {
            content: res.data[i].title,
            color: '#000',
            display: 'ALWAYS'
          }
        })
      }
      _this.setData({
        markers: markers,
        perimeter: res.data
      })
    }
  })
}