test2.js

《征服Ajax》原书的例题源码

<script src="prototype.js"></script>
<script>
var myClass = Class.create();
myClass.prototype = {
	f1: function() {
		alert("do f1()");
	},
	f2: function() {
		alert("do f2()");
	}
}

var mySubClass = Class.create();

Object.extend(mySubClass.prototype, myClass.prototype);

var obj = new mySubClass();
obj.f2();
</script>