函数内部的函数中的this都是指向window

1 　　var name="the window";
2     var object={
3         name:"silence",
4         packname:function(){
5             return this.name;
6         }
7     }
8     console.log(object.packname());

1 var name="the window";
2     var object={
3         name:"silence",
4         packname:function(){
5             return this.name;
6         }
7     }
8     var show=object.packname;
9     console.log(show());

 1 　　var name="the window";
 2     var silence={
 3         name:"silence",
 4         packname:function(){
 5             return this.name;
 6         }
 7     }
 8     var seraph={
 9         name:"seraph",
10         packname:function(){
11             var fun=silence.packname;
12             return fun();
13         }
14     }
15     console.log(seraph.packname());