5.8

var object = {
	'0' : 'A',
	'1' : 'B',
	'2' : function() {
		alert("this");
	}
}

for (var temp in object) {
	alert(temp + ":" + object[temp]);
}

var luxun= {
	'name' : 'luxun',
	'sex' : 'man',
	'eat' : function() {
		alert("eating");
	}
}

for (var temp in luxun) {
	alert(temp + ":" + luxun[temp]);
}

function Base(name) {
	this.name = name;
	this.getName = function() {
		return this.name;
	}
}

function Child(id) {
	this.id = id;
	this.getId = function() {
		return this.id;
	}
}

Child.prototype = new Base("tom");//   

var c1 = new Child(1);
alert(c1.getName());

var jack = {
	name : "jack",
	age : 30
}

var rose= {
	name : "rose",
	age : 29
}

function printName() {
	return this.name;
}

alert(printName.call(jack));

this.addr = addr || new Address(null, null);
this.addr = addr || {};//no one

setName.apply(jack, ["Jack 1."]);
setName.call(rose, "rose 2");