js输入框显示时间 

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script>
//        window.console.log();
//        var ret1=window.confirm();
//        var ret2=window.alert();
//        var ret3=window.prompt();
//        console.log(ret1,ret2,ret3);
        var ID;
        function tm() {
            date=new Date();
            date=date.toLocaleString();
//            window.console.log(date);
            var ele=document.getElementById("tm");
            ele.value=date;
        }
        function begin() {
            if (ID==undefined) {
                tm();
                ID = setInterval(tm, 1000);
            }
            var ele1=document.getElementById("btn1");
            ele1.disabled="disable";
            var ele2=document.getElementById("btn2");
            ele2.disabled="";
        }
        function fin() {
            clearInterval(ID);
            var ele1=document.getElementById("btn2");
            ele1.disabled="disable";
            var ele2=document.getElementById("btn1");
            ele2.disabled="";
            ID=undefined;
        }

    </script>
</head>
<body>
<div>
    <input type="text" id="tm">
    <button id="btn1" onclick="begin()">start</button>
    <button id="btn2" onclick="fin()" disabled="disable">end</button>
</div>
</body>
</html>

 

posted @ 2017-09-25 16:37  风火林山  阅读(1565)  评论(0)    收藏  举报