JS获取当前时间并把时间赋给input表单

<script>
window.onload = function(){
function getDate(){
debugger;
var today = new Date();
var date;
date = (today.getFullYear()) +"-" + (today.getMonth() + 1 ) + "-" + today.getDate() + "-" + today.toLocaleTimeString();
return date;
}
window.setInterval(function(){
document.getElementById("getBookTime").value=getDate();
}, 1000);
}
</script>

....

<input type="text"  name="getBookTime" id="getBookTime" value="">

另外如何自定义日期格式如下：

选择日期：<input type="date" value="2011-01-04" /> 选择时间：<input type="time" value="22:52" /> 选择星期：<input type="week" /> 选择月份：<input type="month" />
结果如下：
选择日期：

选择时间：

选择星期：

选择月份：


另一种写法如下：

< html xmlns = "http://www.w3.org/1999/xhtml" >

< head >

< meta http-equiv = "Content-Type" content = "text/html; charset=gb2312" />

< title >系统时间</ title >

< script language = "javascript" type = "text/javascript" >

<!--

     //获得当前时间,刻度为一千分一秒

     var initializationTime = (new Date()).getTime();

     function showLeftTime() {

         var now = new Date();

         var year = now.getYear();

         var month = now.getMonth();

         var day = now.getDate();

         var hours = now.getHours();

         var minutes = now.getMinutes();

         var seconds = now.getSeconds();

         document.all.show.innerHTML = "2" + year + "年" + month + "月" + day + "日 " + hours + ":" + minutes + ":" + seconds + "";

         //一秒刷新一次显示时间

         var timeID = setTimeout(showLeftTime, 1000);

     }

//-->

</ script >

</ head >

< body onload = "showLeftTime()" >

< label id = "show" >显示时间的位置</ label >

< inpu type = "text" value = "这里是要获取时间的！" />

</ body >

</ html >

 

 

或者如下：

< html >

< head >

< title >无标题文档</ title >

< script >

function t(){

var now= new Date();

var h=now.getHours();

var m=now.getMinutes();

var s=now.getSeconds(); 

if (h>=0 && h <=12)

var ho=" AM";

if (h>12 && h< 24 )

var  ho = " PM" ;

var  tt = h +":"+m+":"+s+ho;

document.getElementById("time") .value = tt ;

}

setInterval('t()',500);

</script>

</ head >

< body >

< form >

< input  type = "text"  id = "time"  value = "" />

</ form >

 

</ body >

</ html >