| 本文实例为大家分享了JavaScript实现全选和全不选操作的具体代码，供大家参考，具体内容如下 效果示例默认状态下： 
勾选全选时： 
任意取消勾选物品A/物品B/物品C时 
实现代码<!DOCTYPE html><html> <head> <meta charset="UTF-8"> <title>全选</title> <script> function myAll() { var all = document.getElementById("all"); var oneList = document.getElementsByName("one"); for(var i = 0; i < oneList.length; i++) { oneList[i].checked = all.checked; } } function myOne() { var all = document.getElementById("all"); var oneList = document.getElementsByName("one"); for(var i = 0; i < oneList.length; i++) { if(oneList[i].checked == false) { all.checked = false; return; } } all.checked = true; } </script> </head> <body> <table id="myTable" border="1" cellpadding="0" cellspacing="0" width="90%" height="180px"> <tr> <th>全选<input id="all" type="checkbox" onclick="myAll()" /></th> <th>序号</th> <th>名称</th> <th>单价</th> <th>数量</th> <th>总计</th> </tr> <tr> <td><input name="one" type="checkbox" onclick="myOne()" /></td> <td>1</td> <td>物品A</td> <td>￥55</td> <td>1</td> <td>￥55</td> </tr> <tr> <td><input name="one" type="checkbox" onclick="myOne()" /></td> <td>2</td> <td>物品B</td> <td>￥70</td> <td>1</td> <td>￥70</td> </tr> <tr> <td><input name="one" type="checkbox" onclick="myOne()" /></td> <td>3</td> <td>物品C</td> <td>￥66</td> <td>1</td> <td>￥66</td> </tr> </table> </body></html>以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持wanshiok.com。
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