相对于传统的“class”型的继承：
function Foo(who) {
this.me = who;
}
Foo.prototype.identify = function() {
return "I am " + this.me;
};
function Bar(who) {
Foo.call( this, who );
}
Bar.prototype = Object.create( Foo.prototype );
Bar.prototype.speak = function() {
alert( "Hello, " + this.identify() + "." );
};
var b1 = new Bar( "b1" );
var b2 = new Bar( "b2" );
b1.speak();
b2.speak();
1.png
you don't know js建议的是object链接到object的模式： (objects-linked-to-other-objects)OOLO：
var Foo = {
init: function(who) {
this.me = who;
},
identify: function() {
return "I am " + this.me;
}
};
var Bar = Object.create( Foo );
Bar.speak = function() {
alert( "Hello, " + this.identify() + "." );
};
var b1 = Object.create( Bar );
![Uploading 2_629135.png . . .]
b1.init( "b1" );
var b2 = Object.create( Bar );
b2.init( "b2" );
b1.speak();
b2.speak();
这种方式实现的是和第一种相同的功能，然而却更加简单。
2.png
