Javascript基础进程

<script type="text/javascript">
<!--
//遍历数组
var dayArray=[1,2,3];
for(var day in dayArray){
	document.write(dayArray[day]);
}

//定义对象,设置属性,访问属性
function University(){
}

var university=new University();
university.name="云南省"
university.city="昆明市"
university.date="1999"
university.sayHi=function(){document.write("hi,boy")}

document.write("<br/>");
document.write(university)
document.write(university.name)
document.write(university.city)
document.write(university['date'])
document.write(university.sayHi())

document.write("<br/>");
for (var prop in university){
	document.write(university[prop]);//形如university['date']
}
//eval
document.write("<br/>");
document.write("计算字符串表达式的值:"+eval("8+9+5/2"));


var obj=new Object;
	obj.color='red';
	obj.dodo=function(){alert(34)};
	document.write(obj.color);
	//对比
	document.write(obj.dodo());
	document.write(obj.dodo);
	
	
	//工厂方式创建对象
	function fnshowPinpai()
	{
	　　 alert(this.color);
	}
	function createcar(sColor,iDoors,sPinpai)
	{
		var oTempCar=new Object;
		oTempCar.color=sColor;
		oTempCar.doors=iDoors;
		oTempCar.pinpai=sPinpai;
		oTempCar.showPinpai=fnshowPinpai;
		return oTempCar;
	}
	var oBmw=createcar("black",4,"BMW");
	oBmw.showPinpai();
	
	//构造函数方式创建对象
	function Car(scolor,snum)
	{
		this.color=scolor;
		this.dodo=function(){alert('aa')};
	} 
	var obj=new Car('yellow',30); 
	for(prop in obj)
	{
		alert(prop);//color;dodo
	}
	
	//原型方式创建对象
	function Car(scolor,snum)
	{
	this.color=scolor;
	this.dodo=function(){alert('aa')};
	}
	Car.prototype.getColor = function (){
	return this.color;
	}
	Car.prototype.setColor = function (value){
	this.color = value;
	}
	var obj=new Car('yellow',30);
	obj.setColor(666);
	alert(obj.getColor());//666
	for(prop in obj)
	{
		alert(prop);//color;dodo
	}
//-->
</script>