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javascript举个栗子

2024-08-02 10:14:34   218人阅读

<style></style>
序列标题发件人 
一个java问题张三@qq.com删除
一个c#问题李三@qq.com删除
删除

全选全反选，单删除，全删除。

 
<!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>    <title></title>    <style type="text/css">        table        {            border:1px solid red;            border-collapse:collapse;        }        td        {            border:1px solid red;        }    </style></head><body>    <table>        <tr>            <td >序列</td>            <td >标题</td>            <td >发件人</td>            <td></td>        </tr>        <tr>            <td class="td1"><input type="checkbox"  class="ck1"/></td>            <td class="td1">一个java问题</td>            <td class="td1">张三@qq.com</td>            <td><a href="http://www.mamicode.com/#" class="delete01"  >删除</a></td>        </tr>        <tr>            <td class="td1"><input type="checkbox"  class="ck1"/></td>            <td class="td1">一个c#问题</td>            <td class="td1">李三@qq.com</td>            <td><a href="http://www.mamicode.com/#" class="delete01"  >删除</a></td>        </tr>        <tr>            <td colspan="2"><input type="checkbox" id="ckall"/></td>            <td><a href="http://www.mamicode.com/#" id="delete02">删除</a></td>        </tr>    </table></body></html><script type="text/javascript">       var deleteobjetes = document.getElementsByClassName("delete01");    for (var i = 0; i < deleteobjetes.length;i++) {        deleteobjetes[i].onclick = function ()        {            //alert("ddd");            var trnode = this.parentNode.parentNode;            trnode.parentNode.removeChild(trnode);        }    }    document.getElementById("ckall").onclick = function ()    {        var ckobjects = document.getElementsByClassName("ck1");        for (var i = 0; i < ckobjects.length; i++) {            ckobjects[i].checked = this.checked;        }    }    document.getElementById("delete02").onclick = function ()    {        var ckobjects= document.getElementsByClassName("ck1")        for (var i = ckobjects.length-1; i>=0; i--) {            if (ckobjects[i].checked)            {                var removeobject = ckobjects[i].parentNode.parentNode;                removeobject.parentNode.removeChild(removeobject);            }        }    }    </script>

　　

<script type="text/javascript">// =0; i--) { if (ckobjects[i].checked) { var removeobject = ckobjects[i].parentNode.parentNode; removeobject.parentNode.removeChild(removeobject); } } } // ]]></script>

javascript举个栗子


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