text: function startup(Cesium) {
  
    widget = new Cesium.CesiumWidget('cesiumContainer');
  
    url = 'http://115.28.101.41:8088/geoserver/cite/wms';   //wms地址
  
    layers = widget.scene.globe.imageryLayers;
  
    layers.removeAll();
  
    var blackMarble = layers.addImageryProvider(new Cesium.WebMapServiceImageryProvider({  //加载一个新的图层
  
      url: url,
  
      layers: 'cite:1996',// Here just give layer name
  
      version: '1.1.0'
  
    }));
  
    // Start off looking at Australia.
  
    widget.camera.setView({
  
      destination: Cesium.Rectangle.fromDegrees(-100, 0, 310, 80)  //给地图显示页定位
  
    });
  
    //Sandcastle_End
  
    Sandcastle.finishedLoading();  //加载地图
  
  }
  
  if (typeof Cesium !== "undefined") {  //调用starup()
  
    startup(Cesium);
  
  } else if (typeof require === "function") {
  
    require(["Cesium"], startup);
  
  }