javascript 简单实现时钟 

<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>JS</title>
    <style>
        #iwatch{
            width:300px;
            height:60px;
            line-height:60px;
            font-size:40px;
            text-align:center;
            border:3px solid #333;
            background-color:#abcdef;
        }
    </style>
</head>
<body>
    <h1>表</h1>
    <hr>
    <div id="iwatch">
        
    </div>
    <script>
        runTime();
    
        //定时调用
        setInterval(runTime, 1000);
    
        function runTime(){
            //获取时分秒
            var date = new Date();
            var h = date.getHours();
            var m = date.getMinutes();
            var s = date.getSeconds();
            
            //处理
            var h = (h<10)?'0'+h:h;
            var m = (m<10)?'0'+m:m;
            var s = (s<10)?'0'+s:s;
            
            //拼装字符串
            var dateStr = h+' : '+m+' : '+s;
            
            //赋值
            document.getElementById('iwatch').innerHTML = dateStr;
        }
    
    
    
    
    </script>
</body>
</html>

 

posted on 2015-12-20 14:45  岩_生  阅读(298)  评论(0)    收藏  举报

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