<script language='javascript'> var startDate = new Date(); for(var i=0;i<10000;i++) { } var endDate = new Date(); alert(endDate.getMilliseconds()); alert(startDate.getMilliseconds()); var standing=endDate.getMilliseconds()-startDate.getMilliseconds(); alert(standing); </script>
<script language='javascript'> var startDate = new Date(); for(var i=0;i<1000;i++) { } var endDate = new Date(); var standing=(endDate.getSeconds()*1000+endDate.getMilliseconds())- (startDate.getSeconds() * 1000 + startDate.getMilliseconds()); alert(standing); </script>1000次,NN的才执行了1ms,呵呵.
alert(Date.parse(startDate))
先打出来看看。。是不是你的浏览器环境问题.js跟php没有关系,确切的说js只跟客户端浏览器有关。
<script language='javascript'>
var startDate = new Date();
for(var i=0;i<10000;i++)
{
}
var endDate = new Date(); alert(endDate.getMilliseconds());
alert(startDate.getMilliseconds());
var standing=endDate.getMilliseconds()-startDate.getMilliseconds();
alert(standing);
</script>
<script language='javascript'>
var startDate = new Date();
for(var i=0;i<1000;i++)
{
}
var endDate = new Date();
var standing=(endDate.getSeconds()*1000+endDate.getMilliseconds())- (startDate.getSeconds() * 1000 + startDate.getMilliseconds());
alert(standing);
</script>1000次,NN的才执行了1ms,呵呵.