Js中window属性和方法

àì夳堔傛蜴生んèń 2022-06-11 02:09 250阅读 0赞

一、window属性和方法  
1. confirm  
//效果类似于alert，但是有一个bool类型的返回值  
var result=confirm("请确认");  
alert(result);

2. setTimeout  
//延迟函数，时间单位是毫秒  
setTimeout(function()\{  
    alert("asassaa");  
\},1000);

3. setInterval()  
//计时器，可以做时钟  
如：  
<!DOCTYPE html>  
<html lang="en">  
<head>  
    <meta charset="UTF-8">  
    <title></title>  
    <script>  
        var hour=0;  
        var min=0;  
        var sec=0;  
        var hourStr,minStr,secStr;  
        setInterval(function()\{  
            var colock=document.getElementById("div1");  
            sec++;  
            if(sec>=60)\{  
                sec=0;  
                min++;  
            \}  
            if(min>=60)\{  
                min=0;  
                hour++;  
            \}  
            if(hour>=24)\{  
                hour=0;  
            \}  
            hour>=10?hourStr=hour:hourStr="0"+hour;  
            min>=10?minStr=min:minStr="0"+min;  
            sec>=10?secStr=sec:secStr="0"+sec;  
            str=hourStr+":"+minStr+":"+secStr;  
            colock.innerHTML=str;  
        \},1000);  
    </script>  
    <style>  
        .div1\{  
            width: 400px;  
            height: 100px;  
            margin: 100px auto;  
            font-size: 80px;  
            line-height: 100px;  
            text-align: center;  
            border: 2px solid gray;  
            border-radius: 15px;  
            box-shadow:10px 10px 5px \#888888;  
        \}  
    </style>  
</head>  
<body>  
    <div class="div1" id="div1">  
        00:00:00  
    </div>  
</body>  
</html>

4. clearInterval()  
//清除定时器，需要定时器的编号，setInterval的返回值就   
是他的编号

5. open()  
//类似于超链接，不过是js中的

二、日期和时间

详细请看我的笔记：

[http://note.youdao.com/noteshare?id=4d6843205a3bf79b2379f83d5905edff&sub=AFC9798EE7CD43F48596D42C150AA29B][http_note.youdao.com_noteshare_id_4d6843205a3bf79b2379f83d5905edff_sub_AFC9798EE7CD43F48596D42C150AA29B]

[http_note.youdao.com_noteshare_id_4d6843205a3bf79b2379f83d5905edff_sub_AFC9798EE7CD43F48596D42C150AA29B]: http://note.youdao.com/noteshare?id=4d6843205a3bf79b2379f83d5905edff&sub=AFC9798EE7CD43F48596D42C150AA29B