@H_502_0@本文实例讲述了JS自定义对象实现Java中Map对象功能的方法。分享给大家供大家参考。具体分析如下：
这里Key，你要使用String类型，和Java一样，你可以进行一些增加，删除，修改，获得的操作。
this.put = function(key,value){
if (key == null || key == undefined) {
return;
}
var index = this._getIndex(key);
if (index == -1) {
var entry = new Object();
entry.key = key;
entry.value = value;
this._entrys[this._entrys.length] = entry;
}else{
this._entrys[index].value = value;
}
};
this.get = function(key){
var index = this._getIndex(key);
return (index != -1) ? this._entrys[index].value : null;
};
this.remove = function(key){
var index = this._getIndex(key);
if (index != -1) {
this._entrys.splice(index,1);
}
};
this.clear = function(){
this._entrys.length = 0;;
};
this.contains = function(key){
var index = this._getIndex(key);
return (index != -1) ? true : false;
};
this.getCount = function(){
return this._entrys.length;
};
this.getEntrys = function(){
return this._entrys;
};
this._getIndex = function(key){
if (key == null || key == undefined) {
return -1;
}
var _length = this._entrys.length;
for (var i = 0; i < _length; i++) {
var entry = this._entrys[i];
if (entry == null || entry == undefined) {
continue;
}
if (entry.key === key) {//equal
return i;
}
}
return -1;
};
}
如果你不懂Js中对象的创建等一些基础知识，自己可以网上查一下。
<div class="codetitle"><a style="CURSOR: pointer" data="10874" class="copybut" id="copybut10874" onclick="doCopy('code10874')"> 代码如下:
先弹出 a 后面弹出 b ，因为后面的会覆盖前面的！
