练习案例_文本时钟

 

 

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html;charset=utf-8">
    <title>文本时钟</title>
    <script type="text/javascript" src="jquery-1.8.3.js"></script>
    <script type="text/javascript" src="tools.js"></script>
    <script type="text/javascript">

        $(document).ready(function () {

            setInterval(function () {
                var dateStr = getDateString(new Date());

                $("#div01").html(dateStr);

            } ,1000);
        });

    </script>
</head>
<body>
    <div id="div01"></div>
</body>
</html>

 

 

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html;charset=utf-8">
    <title>文本时钟练习案例</title>
</head>
<body>

    <div id="div01"></div>

</body>
</html>
<script type="text/javascript">
    //在页面上以文本形式显示当前时间 yyyy-MM-dd HH:mm:ss , 每秒钟刷新一次

    //以yyyy-MM-dd HH:mm:ss这种格式 获得当前时间的日期字符串
    function getDateString(){
        var now = new Date();
        var str = "";

        str = str + now.getFullYear();
        str += "-";

        var month = now.getMonth()+1;     //now.getMonth()     0 代表1月
        if(month<10){
            str += "0";
        }
        str += month;

        str += "-";
        str += now.getDate();
        str += " ";
        str += now.getHours();
        str += ":";
        str += now.getMinutes();
        str += ":";
        str += now.getSeconds();

        return str;

    }

    //1 先把当前日期的文本弄好
    //2 把时间文本显示在页面上


    //3 每隔一秒刷新一次
    setInterval(function(){

        var div01 = document.getElementById("div01");

        div01.innerHTML = getDateString();

    },1000);
</script>

 

posted @ 2016-06-05 15:51  linyongqin  阅读(196)  评论(0)    收藏  举报