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  • 复选框全选、全不选和反选的效果实现VIEW:1592

    <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> 
    </body> 
    </html> 
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  • 原文地址:https://www.cnblogs.com/umgsai/p/3908168.html
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