 
d.wait(3000).run(function(m){ //等待3秒 
alert('從前有座山'); 
}).wait(1000).run(function(m){ //等待1秒 
alert('山里有座廟'); 
}).wait(2000).run(function(m){ //等待2秒 
alert('廟里有一個老和尚給一個小和尚講故事'); 
}).wait(3000).run(function(m){ //等待3秒 
alert('講的故事是:'); 
}).goStart(); //跳到第一條重新執(zhí)行，這句拿掉就只執(zhí)行一次 

復制代碼代碼如下:

 
<!doctype html> 
<html> 
<head> 
<title>異步執(zhí)行</title> 
</head> 
<body> 
<script type="text/javascript"> 
function Delay(){ 
this.funList= []; 
this.index = 0; 
this.re = null; 
this.isloop = false; 
}; 
Delay.prototype = { 
wait:function(m){ 
if(this.funList[this.index] && typeof this.funList[this.index].fun != 'function'){ 
m += this.funList[this.index].m; 
} 
this.funList[this.index] = {m:m,fun:null}; 
return this; 
}, 
run:function(fun){ 
if(typeof this.funList[this.index].fun != 'function'){ 
this.funList[this.index].fun = fun; 
this.index++; 
}else{ 
this.index++; 
this.funList[this.index] = {'m':0,'fun':fun}; 
} 
this.start(); 
return this; 
}, 
start:function(){ 
var self = this; 
if(this.re) return; 
var setOutrun = function(funList,index){ 
if(funList[index] == undefined){ 
clearTimeout(self.re); 
return false; 
} 
var m = funList[index].m, 
fun = funList[index].fun; 
typeof fun == 'function' || (fun = function(){}); 
self.re = setTimeout(function(){ 
if(fun(index) === false)return false; 
if(self.isloop){ 
index = -1; 
self.isloop = false; 
} 
setOutrun(funList,++index); 
},m); 
} 
setOutrun(this.funList,0); 
}, 
stop:function(){ 
return clearTimeout(this.re); 
}, 
goStart:function(){ 
var self = this, 
fun = function(){ 
self.isloop = true; 
}; 
if(this.funList[this.index] && typeof this.funList[this.index].fun != 'function'){ 
this.funList[this.index].fun = fun; 
this.index++; 
}else{ 
this.funList[this.index] = {'m':0,'fun':fun}; 
} 
this.start(); 
} 
}; 
var d = new Delay(); 
d.wait(3000).run(function(m){ 
alert('從前有座山'); 
}).wait(2000).run(function(m){ 
alert('山里有座廟'); 
}).wait(2000).run(function(m){ 
alert('廟里有一個老和尚給一個小和尚講故事'); 
}).wait(2000).run(function(m){ 
alert('講的故事是:'); 
}).goStart(); 
</script></body> 
</html> 