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当创建一个新对象时,可以选择某个对象作为它的原型,上代码:
Object.create = function(o){
var F = function(){};
F.prototype = o;
return new F();
}
var objectA = {};
var objectB = Object.create(objectA);
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原文地址:http://blog.csdn.net/tyleraxin/article/details/45606785