| <body> | |
| <input type="button" value="0"/> | |
| <input type="button" value="0"/> | |
| <input type="button" value="0"/> | |
| <script> | |
| var aBtn = document.getElementsByTagName("input"); | |
| var arr = ["A","B","C","D"]; | |
| /*for(var i=0;i<aBtn.length;i++){ | |
| aBtn[i].onclick = function (){ | |
| this.value++; | |
| //this.value += 1 | |
| //this.value = this.value + 1 | |
| } | |
| }*/ | |
| for(var i=0;i<aBtn.length;i++){ | |
| aBtn[i].j = 0; | |
| aBtn[i].onclick = function (){ | |
| this.value = arr[this.j++%4]; | |
| } | |
| } | |
| </script> | |
| </body> |
独立计数器
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转载自blog.csdn.net/cosmos033/article/details/80397124
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