照着网上的例子打得，可就是输出，求高手指教
<?xml version= "1.0 " encoding= "UTF-8 " ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN ">
<html xmlns= "http://www.w3.org/1999/xhtml ">
<head>
<meta http-equiv= "Content-Type " content= "text/html; charset=UTF-8 " />
<title> Prototype Number Example </title>
<script type= "text/javascript " src= "../../js/prototype.js "> </script>
<script type= "text/javascript ">
var Animal = Class.create();
Animal.prototype = {
initialize: function(name, sound) {
this.name = name;
this.sound = sound;
},
speak: function() {
alert(name + " says: " + sound + "! ");
}
};
var snake = new Animal( "Ringneck ", "hissssssssss ");
snake.speak();
var Dog = Class.create();
Dog.prototype = Object.extend(new Animal(), {
initialize: function(name) {
this.name = name;
this.sound = "woof ";
}
});
var fido = new Dog( "Fido ");
fido.speak();
</script>
</head>
<body>
</body>
</html>
------解决方案--------------------
create() -> Function
Returns an function that acts like a Ruby class.
------解决方案--------------------
speak: function() {
alert(this.name + " says: " + this.sound + "! ");
}
};