JS gets the current time and assigns the time to the input form

<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= "" >

Also how to customize the date format as follows:

Select Date:<InputType=The date"Value="2011-01-04"/> Select time:<InputType=The time" value=" 22:52" /> Select week:<input type=" Week" /> Select Month:<input type="month" />
The results are as follows:
Select Date:

Select time:

Select Week:

Select Month:


Another way to do this is as follows:

< 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 >Or as follows: < 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 >

JS gets the current time and assigns the time to the input form