声明一个对象，给它加上 name 属性和 show 方法显示其 name 值，以下代码中正确的是（)
A.var obj = [name:"zhangsan",show:function(){alert(name);}];
B.var obj = ,name:"zhangsan",show:”alert(this.name)”-;
C.var obj = {name:"zhangsan",show:function(){alert(name);}};
D.var obj = {name:"zhangsan",show:function(){alert(this.name);}};
正确答案D 