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HTML+css+js implements full selection and inverse selection of check boxes

高洛峰Original: 2016-10-12 14:30:121592browse

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
    <head>
        <title>html+css+js实现复选框全选与反选</title>
        <meta http-equiv="content-type" content="text/html;charset=utf-8" />
        <meta name="keywords" content="js,笔试题目" />
        <style type="text/css">
            table,tr,td
            {
                border:1px solid red;
            }
        </style>
        <script type="text/javascript">
            function quanxuan()
            {
                for(var i=1;i<=3;i++)
                {
                    var cbox_id="cb"+i;
                    var cbox=document.getElementById(cbox_id);
                    //alert(cbox.value);
                    if(document.getElementById("cb_quanxuan").checked)
                        cbox.checked=true;
                    else
                        cbox.checked=false;
                }
            }
            function fanxuan()
            {
                for(var i=1;i<=3;i++)
                {
                    var cbox_id="cb"+i;
                    var cbox=document.getElementById(cbox_id);
                    if(document.getElementById("cb_fanxuan").checked)
                    {//选中反选框
                        if(cbox.checked)
                            cbox.checked=false;
                        else
                            cbox.checked=true;
                    }
                    else
                    {
                        if(cbox.checked)
                            cbox.checked=false;
                        else
                            cbox.checked=true;
                    }
                }
            }
        </script>
        
    </head>
    <body>
        <form id="form1">
            <table>
                <tr>
                    <td><input type="checkbox" id="cb_quanxuan" onclick="quanxuan()" />全选</td>
                    <td>复选框全选案例</td>
                    <td> </td>
                    <td> </td>
                </tr>
                
                <tr>
                    <td><input type="checkbox" id="cb1" value="1" />1</td>
                    <td>我是傻逼1</td>
                    <td> </td>
                    <td> </td>
                </tr>
                
                <tr>
                    <td><input type="checkbox" id="cb2" value="2" />2</td>
                    <td>我是傻逼2</td>
                    <td> </td>
                    <td> </td>
                </tr>
                
                <tr>
                    <td><input type="checkbox" id="cb3" value="3" />3</td>
                    <td>我是傻逼3</td>
                    <td> </td>
                    <td> </td>
                </tr>
                
                <tr>
                    <td><input type="checkbox" id="cb_fanxuan" onclick="fanxuan()" />反选</td>
                    <td>反选案例</td>
                    <td> </td>
                    <td> </td>
                </tr>
            </table>
        </form>
    </body>
</html>

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