多的不说,直接上练习例子:
1.对象的属性、创建、构造函数、方法
<html xmlns="http://www.w3.org/1999/xhtml">
<body>
<script type="text/javascript">
//函数:用作对象的方法
function Rectangle_area() {return this.width * this.height;}
function Rectangle_perimeter() {return this.width * 2 + this.height * 2;}
function Rectangle_set_size(w, h) { this.width = w; this.height = h;}
//object_Rectangle 的构造函数
function object_Rectangle(w, h)
{
//初始化对象的属性
this.width = w;
this.height = h;
//定义对象的方法
this.area = Rectangle_area;
this.perimeter = Rectangle_perimeter;
this.set_size = Rectangle_set_size;
}
//创建object_Rectangle对象,调用它的方法
var r = new object_Rectangle(3, 4);
var a = r.area();
document.write(a);
</script>
</body>
</html>
原文地址:http://blog.csdn.net/u014761420/article/details/39828355