html checkbox 实现全选/取消全选
<html><body> <table border="1"> <tr> <th><input type="checkbox" onclick="swapCheck()" /></th> <th>Month</th> <th>Savings</th> </tr> <tr> <td><input type="checkbox" /></td> <td>January</td> <td>$100</td> </tr> <tr> <td><input type="checkbox" /></td> <td>February</td> <td>$150</td> </tr> </table> <script type="text/javascript" src="http://apps.bdimg.com/libs/jquery/2.1.1/jquery.min.js"></script> <script type="text/javascript"> //checkbox 全选/取消全选 var isCheckAll = false; function swapCheck() { if (isCheckAll) { $("input[type='checkbox']").each(function() { this.checked = false; }); isCheckAll = false; } else { $("input[type='checkbox']").each(function() { this.checked = true; }); isCheckAll = true; } } </script></body></html>
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