正文
js链表操作
提示：扫一扫查出行【扫一扫了解最新限行尾号】
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<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<script>
function Node(v){
this.value=v;
this.next=null;
}
function ArrayList(){
this.head=new Node(null);
this.tail = this.head;
this.append=function(v){
node = new Node(v);
this.tail.next=node;
this.tail=node;
}
this.insertAt=function(ii,v){
node = new Node(v);
//找到位置的节点
tempNode=this.head;
for(i=0;i<ii;i++){
if(tempNode.next!=null){
tempNode=tempNode.next;
}else{
break;
}
}
node.next=tempNode.next;
tempNode.next = node;
}
this.removeAt=function(ii){
node1=this.head; //要删除节点的前一个节点
for(i=0;i<ii;i++){
if(node1.next!=null){
node1=node1.next;
}else{
break;
}
}
node2=node1.next; //要删除的节点
if(node2!=null){
node1.next = node2.next;
if(node2.next==null){
this.tail=node1;
}
}
} }
function Iterator(arryList){
this.point=arryList.head;
this.hasNext=function(){
if(this.point.next!=null){
this.point=this.point.next;
return true;
}else{
return false;
}
}
this.next=function(){
return this.point.value;
}
} var arry = new ArrayList();
arry.append(1);
arry.append(2);
arry.append(3);
arry.insertAt(1,8);
arry.insertAt(0,9);
arry.insertAt(100,100);
arry.insertAt(1000,1000);
arry.insertAt(1,200);
arry.insertAt(200,2000); iterator = new Iterator(arry);
while(iterator.hasNext()){
document.write(iterator.next());
document.write('<br/>');
}
</script>
</head>
<body> </body>
</html>
