| <body> | |
| <button type="button">按钮1</button> | |
| <button type="button">按钮2</button> | |
| <button type="button">按钮3</button> | |
| <script> | |
| var aBtn = document.getElementsByTagName("button"); | |
| var that = null; | |
| function changeBg(){ | |
| that.style.backgroundColor = "yellow"; | |
| } | |
| for(var i=0;i<aBtn.length;i++){ | |
| aBtn[i].onclick = function (){ | |
| that = this; | |
| changeBg(); | |
| }; | |
| } | |
| </script> |
that与this的应用实例
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转载自blog.csdn.net/cosmos033/article/details/80397681
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