标签：
html code: <script src=“foo.js"></script>
js code:
function People(){
}
People.prototype.say = function(){
alert("hello");
}
function Student(){
}
Student.prototype = new People();
var s = new Student();
s.say();
标签：
原文地址：http://www.cnblogs.com/htmlphp/p/4814918.html
