zoukankan      html  css  js  c++  java
  • 多选框

    <html>
    
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=gb2312">
    <title>复选框全选、全不选和反选的效果实现</title>
    <SCRIPT LANGUAGE="JavaScript">
    
    <!-- Begin
    function checkAll() {
    for (var j = 1; j <= 9; j++) {
    box = eval("document.checkboxform.C" + j); 
    if (box.checked == false) box.checked = true;
       }
    }
    
    function uncheckAll() {
    for (var j = 1; j <= 9; j++) {
    box = eval("document.checkboxform.C" + j); 
    if (box.checked == true) box.checked = false;
       }
    }
    
    function switchAll() {
    for (var j = 1; j <= 9; j++) {
    box = eval("document.checkboxform.C" + j); 
    box.checked = !box.checked;
       }
    }
    //  End -->
    </script>
    </head>
    
    <body>
    
    <form name=checkboxform>
    <input type=checkbox name=C1 checked>C1<br>
    <input type=checkbox name=C2 checked>C2<br>
    <input type=checkbox name=C3 checked>C3<br>
    <input type=checkbox name=C4 checked>C4<br>
    <input type=checkbox name=C5 checked>C5<br>
    <input type=checkbox name=C6 checked>C6<br>
    <input type=checkbox name=C7 checked>C7<br>
    <input type=checkbox name=C8 checked>C8<br>
    <input type=checkbox name=C9 checked>C9<br>
    <br>
    <input type=button value="全部选中" onClick="checkAll()"><br>
    <input type=button value="全部不选" onClick="uncheckAll()"><br>
    <input type=button value="选择转换" onClick="switchAll()"><br>
    </form>
    <p><a href="http://www.lanrentuku.com" target="_blank">懒人图库</a></p>
    </body>
    </html>
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  • 原文地址:https://www.cnblogs.com/laohan110/p/4083802.html
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