数据结构28-优先级队列_实现 

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>优先级队列</title>
</head>
<body>
    <script>
        function ProorityQueue(){
            this.items=[]

            ProorityQueue.prototype.push=function(element){
                this.items.push(element)
            }

            ProorityQueue.prototype.shift=function(){
               return this.items.shift()
            }

            ProorityQueue.prototype.front=function(){
                return this.items[0]
            }

            ProorityQueue.prototype.isEmpty=function(){
                return this.items.length==0
            }

            ProorityQueue.prototype.size=function(){
                return this.items.length
            }

            ProorityQueue.prototype.toString=function(){
                var resultString=""
                for(var i=0;i<this.items.length;i++){
                    resultString+=this.items[i].element+"-"+this.items[i].priority
                }
                return resultString
            }
        }
        function ProorityQueue(){
            function QueueElement(element,priority){
                this.element=element
                this.priority=priority
            }
            //封装属性‘
            this.items=[]
            //实现输入方法
            ProorityQueue.prototype.enqueue=function(element,priority){
                var element=new QueueElement(element,priority)
                //判断队列是否为空
                if(this.items.length==0){
                  this.items.push(queueElement)
                }else{
                    var added=false
                    for(var i=0;i<this.items.length;i++){
                        for(var i=0;i<this.items.length;i++){
                            if(queueElement.priority<this.items[i].priority){
                                this.items.splice(i,0,queueElement)
                                added=true
                                break
                            }
                        }
                    if(!added){
                        this.items.push(queueElement)
                    }
                    }
                }


            }
        }
    </script>
</body>
</html>

posted @ 2022-12-12 16:20  前端导师歌谣  阅读(18)  评论(0)    收藏  举报