基础的JavaScript知识总结（十一）对象，包装类

系统自带new object(),array;number();boolean();String;date()

var my = { name : "Mrcheng", age : "18", sex : "male", health : 100;
 bike : function(){ console.log("I ride a bike every day");
 my.health++;
 }, drink : function(){ console.log("I don't drink"); this.health--;
 }, health : 100;
 }//my.bike叫函数的引用//my.bike()叫执行函数//对象的增my.girlfriend = "No";//对象的删除delete my.health//对象的修改my.health = 200;//对象的查看my.bike

1. var obj = {} plainObject //对象字面量/对象直接量2.构造函数 1) 系统自带的构造函数 Object()... 2) 自定义//系统自带的 var obj = new Object();var obj = {};//两种方式一样//第一种方式怎么加属性和第二种一样obj.name = 'my';//自定义function Person(){
};var person1 = new Person();//通过关键字new操作符,才可以构造个对象出来//构造函数命名用大驼峰式
//自定义function Car(color){ this.color = color this.name = 'BMW', this.height = '1400', this.lang = '4900', this.weight = 1000, this.health = 100, this.run = function(){ this.health --;
 }
};var car = new Car("red");var car1 = new Car("green");
car1.name = "Maserati";//car1.name打印出"Maserati"//car.name打印出'BMW'