摘要： /** 1. 定义一个Cat类 **/var Cat = { getInstance: function(){ var cat = {}; car.name="jerry"; cat.shout = function(){ alert("miao~miao~"); }; return cat; }};var cat = Cat.getInstance();alert(cat.name);/** 2. 继承 **/var Animal = { getInstance: function(){ var animal = {}; animal.type=&qu 阅读全文