[borwser window窗口大小 算是screen补充吧]主要因为移动IE游览器 写了个兼容

 1     console.log(window.outerWidth + ‘--‘ + window.outerHeight);//只读的整数，声明了整个窗口的XY
 2 
 3     var width  = window.innerWidth;
 4     var height = window.innerHeight;
 5     console.log("window.inner--" + width+ ‘--‘ + height);
 6     console.log(‘-------------‘);
 7     var width  = document.documentElement.clientWidth;
 8     var height = document.documentElement.clientHeight;
 9     console.log("document.documentElement.client--" + width + ‘--‘ + height);
10     console.log(‘-------------‘);
11     var width  = document.body.clientWidth;
12     var height = document.body.clientHeight;
13     console.log("document.body.client--" + width + ‘--‘ + height);
14     console.log(‘-------------‘);
15     console.log(document.compatMode);//兼容模式是否开启
16                                      //开启CSS1Compat 否backCompat

 1     //获得window的大小,主要因为在移动设备IE游览器上有区别
 2     //移动IE游览器不支持inner client
 3     //可以通过document.documentElement.client获得
 4     //compatMode判断兼容模式是否开启
 5     function windowClientXY(){
 6         var pageWidth  = window.innerWidth;
 7         var pageHeight = window.innerHeight;
 8         if(typeof pageWidth != ‘number‘){
 9             if(document.compatMode == ‘CSS1Compat‘){
10                 pageWidth  = document.documentElement.clientWidth;
11                 pageHeight = document.documentElement.clientHeight;
12             }else{
13                 pageWidth  = document.body.clientWidth;
14                 pageHeight = document.body.clientHeight;
15             }
16         }
17         return console.log("宽-" + pageWidth + ",高-" +pageHeight);
18     }
19     windowClientXY();
20 
21     //分别封装
22     function windowClientX(){
23         var pageWidth  = window.innerWidth;
24         if(typeof pageWidth != ‘number‘){
25             if(document.compatMode == ‘CSS1Compat‘){
26                 pageWidth  = document.documentElement.clientWidth;
27             }else{
28                 pageWidth  = document.body.clientWidth;
29             }
30         }
31         return windowClientX = pageWidth
32     }
33     console.log(windowClientX());
34 
35     function windowClientY(){
36         var pageHeight = window.innerHeight;
37         if(typeof pageWidth != ‘number‘){
38             if(document.compatMode == ‘CSS1Compat‘){
39                 pageHeight = document.documentElement.clientHeight;
40             }else{
41                 pageHeight = document.body.clientHeight;
42             }
43         }
44         return windowClientY = pageHeight
45     }
46     console.log(windowClientY());