javascript 对象

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var phone = {
	price:'5000$',
	weight:'150g',
	chat:function(){
		alert('can chat');
	}
}

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funtion fruit(p,c,w){
	this.price = p;
	this.color = c;
	this.weight = w;
	this.eat = function(){
		alert('can eat');
	}
}

var apple = new fruit('5$','red','50g');
alert(apple.color);

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var phone = {
	price:'5000$',
	weight:'150g',
	chat:function(){
		alert('can chat');
	}
}
document.write(phone.price);
document.write(phone['price']);

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for(x in y){
	
}
//x是属性名或方法名
//y是要遍历的对象名

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//phone为一个对象

delete phone.price; //删除对象属性

phone = null; //销毁对象