js日期

 

 

 

 

<!--
function test()...{
        var now = new Date();
        //0==new Date(1970,0,1)1970.1.1
        var t1=new Date(1970,0,1);
        var t2=new Date(1970,0,8);    
        
        //7days 时间间隔
        var timeslicenew = t2.valueOf() - t1.valueOf();   
        document.write(timeslicenew);//ms
        alert(timeslicenew);
        
        var timeslicenew = now.valueOf() - timeslicenew.valueOf();
        var dateFrom=new Date(timeslicenew);
      alert(dateFrom);
}
//-->
</script>