/*添加热力图*/
        function appendHeatMap() {
            var bounds = {
                west: 106.3757,
                east: 123.3663,
                south: 24.3974,
                north: 33.9012
            };

            var data = [{
                "x": 147.1383442264,
                "y": -41.4360048372,
                "value": 76
            }, {
                "x": 108.6308,
                "y": 32.2851,
                "value": 80
            }, {
                "x": 110.6308,
     