sunhongwei412的专栏

原创 对js面向对象的初步理解

function test_opp(name,age){this.name=name;this.age=age;this.ha=1;}test_opp.prototype.huha = function(ele){alert(ele);}test_opp.prototype.ha=2;var opp = new test_opp("sunhongwei","25");//function test_opp（）是构造函数opp.huha("good");alert(test_opp.ha);//弹出的是und