JS当前日期是格式差问题

Question

文本？什么格式，你要获得年月日var todayDate = new Date(2009,3,9);
然后这样转
 document.getElementById('Text_Payment_Date_Add').value = todayDate.setMonth(todayDate.getMonth()-3); 

Answer 1

todayDate.setMonth(todayDate.setMonth()-3);  
document.getElementById('Text_Payment_Date_Add').value= todayDate.toLocaleString().split(' ')[0];

Answer 2

<script language="javascript">
window.onload=function(){
    var obj = document.getElementById("Text_Arrival_Date_Add");
    obj.value="2008-06-01";//这里默认2008-06-01
    var arr = obj.value.split("-");
    var d = new Date(arr[0],arr[1],arr[2]);
    d.setMonth(d.getMonth()-3);
    obj.value = d.getFullYear()+"-"+fNum(d.getMonth())+"-"+fNum(d.getDate());
}
function fNum(m)
{
    if(m<10) m = "0"+m;
    return m;
}
</script><input type="text" id="Text_Arrival_Date_Add" value="2008-06-01"  />

Answer 3

L@_@K
var todayDate = new Date(Date.parse(document.getElementById('Text_Arrival_Date_Add').value.replace("-","/")));
document.getElementById('Text_Arrival_Date_Add').value = todayDate.setMonth(todayDate.getMonth()-3);