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1.?jquery的$.delay()方法
设置一个延时来推迟执行队列中之后的项目。这个方法不能取代JS原生的setTimeout。
The?.delay()?method?is?best?for?delaying?between?queued?jQuery?effects.?Because?it?is?limited―it?doesn't,?for?example,?offer?a?way?to?cancel?the?delay―.delay()?is?not?a?replacement?for?JavaScript's?native?setTimeout?function,?which?may?be?more?appropriate?for?certain?use?cases.
例子：在.slideUp()?和?.fadeIn()之间延时800毫秒。
HTML?代码:
<div?id="foo?/">
jQuery?代码:
$('#foo').slideUp(300).delay(800).fadeIn(400);
2. 通过循环消耗cpu
????function?sleep(n)?{
????var?start?=?new?Date().getTime();
????while(true)??if(new?Date().getTime()-start?>?n)?break;
????}
3.?用setTimeout。
假设有三个步骤，步骤之间需要暂停一段时间；可以采用如下的方法：
function?firstStep()?{
//do?something
setTimeout("secondStep()",?1000);
}
function?secondStep()?{
//do?something
setTimeout("thirdStep()",?1000);
}
function?thirdStep()?{
//do?something
}