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时间:2014-04-27 22:30:30
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <title>Untitled Document</title> <script type="text/javascript"> var a={ af:function(){ console.log(this); }, b:{ bb:function(){ console.log(this); } }, c:{ cc:{ cccf:function(){ console.log(this); } } } } a.b.bb();//这里this指向的时b a.b.bb.call(Window);//this指向的是Window a.b.bb.call(a);//this指向的时a </script> </head> <body> </body> </html>
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