function Stack(type) {function QueueConst() {}QueueConst.execute_ing=[],QueueConst.execute_no=[],QueueConst.state=1,QueueConst.type = type?type:falseQueueConst.prototype.stop=function () {//暂停QueueConst.state=2}QueueConst.prototype.reset=function () { //恢复QueueConst.state=3QueueConst.prototype.execute();}QueueConst.prototype.execute=function () { //执行队列if(QueueConst.state==2) return;var currentItem = nullif(QueueConst.execute_ing.length>0){currentItem = QueueConst.execute_ing.shift()if(QueueConst.type){currentItem(QueueConst.prototype.reset)QueueConst.prototype.stop()}else {currentItem()QueueConst.prototype.execute()}//执行当前}else {if(QueueConst.execute_no.length<1) {//完成队列里面的任务;QueueConst.state = 1return};QueueConst.execute_ing = QueueConst.execute_no.reverse()QueueConst.execute_no=[]QueueConst.prototype.execute()}}QueueConst.prototype.add=function (item) {//添加任务QueueConst.execute_no.push(item)if(QueueConst.state==1) QueueConst.state=3QueueConst.prototype.execute();}return new QueueConst()
}var que = Stack(true);que.add(function (next) {var index = 1;var loop = setInterval(function () {console.log(index++)},1000)setTimeout(function () {next();console.log('one')clearInterval(loop)},5000)})que.add(function (next) {var index = 1;var loop = setInterval(function () {console.log(index++)},1000)setTimeout(function () {next();console.log('two')clearInterval(loop)},3000)})que.add(function (next) {var index = 1;var loop = setInterval(function () {console.log(index++)},1000)setTimeout(function () {next();console.log('three')clearInterval(loop)},3000)})