• 可视区颜色改变


    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
            "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
    <head>
        <meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
        <title>Document</title>
    </head>
    <body>
    </body>
    </html>
    <script>
        function client()
        {
            if(window.innerWidth!=null){
                return {
                    window.innerWidth,
                    height:window.innerHeight
                }
            }
            else if(document.compatMode==="CSS1Compat"){
                return{
                    document.documentElement.clientWidth,
                    height:document.documentElement.clientHeight
                }
            }
            else{
                return{
                    document.body.clientWidth,
                    height:document.body.clientHeight
                }
            }
        }
        reSize();//页面一加载先调用函数一次
        window.onresize = reSize; //不带括号,只要屏幕触发,就调用reSize函数
        function reSize(){
             var width=client().width;
                if(width>960)
                {
                    document.body.style.backgroundColor = "red";
                }
                else if(width>640)
                {
                    document. body.style.backgroundColor="green";
                }
                else{
                    document.body.style.backgroundColor="blue";
                }
    
        }
    </script>
    

      

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  • 原文地址:https://www.cnblogs.com/shanlu0000/p/11252881.html
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