测试JS基本类型以及对象的引用

自己敲的。
  1 <script src="https://ajax.googleapis.com/ajax/libs/prototype/1.7.1.0/prototype.js" type="text/javascript"></script>

<script type="text/javascript" language="javascript" charset="utf-8">
var a = new Number(5);
var b = a;
a = 6;
console.info(b);//输出一个number对象
console.info(b.toString());//值为5
var c = 5;
console.info(c);//直接打印5,那么这个是基本数据类型。
console.info(a == b);//false
console.info(a === b);//false
a = 5;
console.info(a == b);//true,值相等,但确切说，不是同一个对象
console.info(a === b);//false
a = 5;
b = a;
console.info(a == b);//true  现在是同一对象了
console.info(a === b);//true 



function Man(){
    this.love = "爱";
}
Man.prototype = {
    __proto__:new Man(),//不加这句的话，就不会有名字。Man对象的原型名就叫Man，但意思又是继承了Man,把Man中的属性弄成了，反正不要这样。
    "name":"小王",
    "age":23,
    sex:"男"
}
var m = new Man();//打印的对象
//m.prototype.name = "小李";//m，实例无法更改原型属性
Man.prototype.name = "小李";
var m2 = m;
m2.love="不爱";
console.info(m);
console.info(m.love);//不爱，指向同一个对象。
console.info(m == m2);//true 
console.info(m === m2);//true 

function People(name,age,sex){
    this.name = name;
    this.age = age;
    this.sex = sex;
}

var p = new People("小王",23,"男");
var p1 = new People("小王1",23,"男");
var p2 = p;
console.info(p);//"小王",23,"男"
console.info(p1);//"小王1",23,"男"
console.info(p == p1);//false
console.info(p === 1);//false
console.info(p == p2);//true 
console.info(p === p2);//true 

var Animal = Class.create();
Animal.prototype = {
    constructor : Animal, //注意这句将修复constructor属性
    initialize : function(name) {
        this.name = name;
    },
    getName : function() {
        return this.name;
    },
    setName : function(name) {
        this.name = name;
    }
}
var a = new Animal("小狗");
console.info(a);




/**
 * $class //这是一个摘抄的，源地址在底部
 * @param {String} className
 * @param {Function} superClass
 * @param {Function} classImp
 */
function $class(className, superClass, classImp){
    if(superClass === "") superClass = Object;
 
    function clazz(){
        if(typeof this.init == "function"){
            this.init.apply(this, arguments);
        }
    }
 
    var p = clazz.prototype = new superClass();
    var _super = superClass.prototype;
    window[className] = clazz;
    classImp.apply(p, [_super]);
}

$class('Zhiwu', '', function(){
    // 构造函数
    this.init = function(name){
        this.name = name;
    };
    // 方法体
    this.getName = function(){
        return this.name;
    };
    this.setName = function(name){
        this.name = name;
    };
});

var p = new Zhiwu('Jack');
console.log(p); 
console.log(p.constructor == Zhiwu);

</script>


擦，地址忘了。叉了就忘了。