2020-02-16 标签:javascript,为对,原型,prototype,添加,属性,两种,方式,实现,代码,如下,script,type,text,var,myobj,function,study,hobby

实现代码如下： " ); } document.write( "==================== " ); //方式二 var superObj = { name:"xugang" }; var subObj = { age:20 }; function extend(superObj,s