function openShopLocationForWx(){
            var bd_point={
                lng:"40.417224",
                lat:"116.319165",
            };
            
            var gcj_point=location_wx_baiduTomars(bd_point);
            
            wx.openLocation({
              latitude: gcj_point.lng, 
              longitude: gcj_point.lat, 
              name: "水长城景区", 
              address: "北京市怀柔区九渡河镇黄花城长城景区", 
              scale: 15,
              infoUrl: "http://yqh.56hm.cn" 
            });
            
        }

        function openLocationForWx(lng,lat,name,address){
            var bd_point={
                lng:lng,
                lat:lat,
            };
            
            var gcj_point=location_wx_baiduTomars(bd_point);
            
           wx.openLocation({
              latitude: gcj_point.lng, 
              longitude: gcj_point.lat, 
              name: name, 
              address: address, 
              scale: 15,
              infoUrl: "http://yqh.56hm.cn" 
            });
            
        }
        
        var x_pi=3.14159265358979324 * 3000.0 / 180.0;
        function location_wx_baiduTomars(baidu_point){
            var mars_point={lng:0,lat:0};
            var x=baidu_point.lng-0.0065;
            var y=baidu_point.lat-0.006;
            var z=Math.sqrt(x*x+y*y)- 0.00002 * Math.sin(y * x_pi);
            var theta = Math.atan2(y, x) - 0.000003 * Math.cos(x * x_pi);
            mars_point.lng=z * Math.cos(theta);
            mars_point.lat=z * Math.sin(theta);
            return mars_point;
        }