Javascript表格全选

最新推荐文章于 2024-02-19 16:02:43 发布

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>表格全选</title>
    <style>
        table{
            border: 1px solid gold;
            margin: auto;
            width: 500px;
        }
        td,th{
            text-align: center;
            border-left: 1px solid cyan;
            border-right: 1px solid saddlebrown;
            border-top: 1px solid cyan;
            border-bottom: 1px solid saddlebrown;
        }
        div{
            text-align: center;
            margin: 50px;
        }
        .out{
            background-color: pink;
        }
        .over{
            background-color: white;
        }
    </style>
    <script>
        window.onload = function (ev) {
            var cbs = document.getElementsByName("cb");

            // 全选
            document.getElementById("selectAll").onclick = function (ev1) {
                for (var i = 0; i < cbs.length; i++) {
                    cbs[i].checked = true;
                }
            }

            // 全不选
            document.getElementById("unSelectAll").onclick = function (ev2) {
                for (var i = 0; i < cbs.length; i++) {
                    cbs[i].checked = false;
                }
            }

            // 反选
            document.getElementById("selectReverse").onclick = function (ev3) {
                for (var i = 0; i < cbs.length; i++) {
                    cbs[i].checked = !cbs[i].checked;
                }
            }

            // 第一个cb
            document.getElementById("firstCb").onclick = function (ev4) {
                for (var i = 0; i < cbs.length; i++) {
                    cbs[i].checked = this.checked;
                }
            }

            var trs = document.getElementsByTagName("tr");
            for (var i = 0; i < trs.length; i++) {
                trs[i].onmouseover = function (ev1) {
                    this.className = "out";
                }
                trs[i].onmouseout = function (ev2) {
                    this.className = "over";
                }
            }
        }
    </script>
</head>
<body>

    <input type="text" id="id" placeholder="请输入编号">
    <input type="text" id="name" placeholder="请输入姓名">
    <input type="text" id="gender" placeholder="请输入性别">
    <input type="button" id="btn_add" value="添加">

    <table>
        <caption>学生信息表</caption>
        <tr>
            <th><input type="checkbox" name="cb" id="firstCb"></th>
            <th>编号</th>
            <th>姓名</th>
            <th>性别</th>
            <th>操作</th>
        </tr>
        <tr>
            <td><input type="checkbox" name="cb"></td>
            <td>1</td>
            <td>令狐冲</td>
            <td>男</td>
            <td><a href="javascript:void(0);" onclick="delTr(this)">删除</a></td>
        </tr>
        <tr>
            <td><input type="checkbox" name="cb"></td>
            <td>2</td>
            <td>任我行</td>
            <td>男</td>
            <td><a href="javascript:void(0);" onclick="delTr(this)">删除</a></td>
        </tr>
        <tr>
            <td><input type="checkbox" name="cb"></td>
            <td>3</td>
            <td>岳不群</td>
            <td>?</td>
            <td><a href="javascript:void(0);" onclick="delTr(this)">删除</a></td>
        </tr>
    </table>
    <div>
        <input type="button" id="selectAll" value="全选">
        <input type="button" id="unSelectAll" value="全不选">
        <input type="button" id="selectReverse" value="反选">
    </div>

</body>
</html>