js合并table表格中一列合并相同内容的单元格

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script type="text/javascript" src="./jquery-1.7.2.min.js" charset="UTF-8"></script>
    <style>
        table,table tr th, table tr td { border:1px solid #0094ff; }
        table { width: 200px; min-height: 25px; line-height: 25px; text-align: center; border-collapse: collapse;}
    </style>
</head>
<body>
    <table>
        <thead>
            <tr>
                <th>时间</th>
                <th>姓名</th>
                <th>内容</th>
            </tr>
        </thead>
        <tbody id="content">
            <tr>
                <td>周一</td>
                <td userid="3">张三</td>
                <td>123</td>
            </tr>
            <tr>
                <td>周一</td>
                <td userid="1">李四</td>
                <td>444</td>
            </tr>
            <tr>
                <td>周一</td>
                <td userid="1">李四</td>
                <td>5555</td>
            </tr>

            <tr>
                <td>周二</td>
                <td userid="2">李四</td>
                <td>123</td>
            </tr>
            <tr>
                <td>周二</td>
                <td userid="2">李四</td>
                <td>444</td>
            </tr>
            <tr>
                <td>周二</td>
                <td userid="2">李四</td>
                <td>5555</td>
            </tr>
        </tbody>
    </table>

<script>
    $(function () {
        MergeCell('content',0,0,0,0);
        MergeCell1('content',0,0,1,1);

    })
    ///合并表格相同行的内容
    ///table:表格或者表格ID(最好是tbody,避免把表尾给合并了)
    ///startRow:起始行,没有标题就从0开始
    ///endRow:终止行,此参数是递归时检查的范围,一开始时会自动赋值为最后一行
    ///col:当前处理的列
    ///endCol:终止列
    ///isInit:是否初始调用,如果是则在终止行为0时自动取最后一行
    function MergeCell(table, startRow, endRow, col, endCol, isInit) {
        if (typeof (table) == 'string')
            table = document.getElementById(table);
        if (col >= table.rows[0].cells.length || col > endCol) {
            return;
        }
        if (isInit == undefined) isInit = true;
        //当检查第0列时检查所有行
        if ((col == 0 || endRow == 0) && isInit) {
            endRow = table.rows.length - 1;
        }
        for (var i = startRow; i < endRow; i++) {
            //程序是自左向右合并
            if (table.rows[startRow].cells[col].innerHTML == table.rows[i + 1].cells[col].innerHTML) {
                //如果相同则隐藏下一行的同列单元格
                table.rows[i + 1].cells[col].style.display = 'none';
                //更新rowSpan属性
                table.rows[startRow].cells[col].rowSpan = (table.rows[startRow].cells[col].rowSpan | 0) + 1;
                //当循环到终止行前一行并且起始行和终止行不相同时递归(因为上面的代码已经检查了i+1行,所以此处只到endRow-1)
                if (i == endRow - 1 && startRow != endRow) {
                    MergeCell(table, startRow, endRow, col + 1, endCol, false);
                }
            } else {
                //起始行,终止行不变,检查下一列
                MergeCell(table, startRow, i, col + 1, endCol, false);
                //增加起始行
                startRow = i + 1;
            }
        }
    }

	//更具attr来合并
    function MergeCell1(table, startRow, endRow, col, endCol, isInit) {
        if (typeof (table) == 'string')
            table = document.getElementById(table);
        if (col >= table.rows[0].cells.length || col > endCol) {
            return;
        }
        if (isInit == undefined) isInit = true;
        //当检查第0列时检查所有行
        if ((col == 0 || endRow == 0) && isInit) {
            endRow = table.rows.length - 1;
        }
        for (var i = startRow; i < endRow; i++) {
            //程序是自左向右合并
            if ($(table.rows[startRow].cells[col]).attr("userid") == $(table.rows[i + 1].cells[col]).attr("userid")) {
                //如果相同则隐藏下一行的同列单元格
                table.rows[i + 1].cells[col].style.display = 'none';
                //更新rowSpan属性
                table.rows[startRow].cells[col].rowSpan = (table.rows[startRow].cells[col].rowSpan | 0) + 1;
                //当循环到终止行前一行并且起始行和终止行不相同时递归(因为上面的代码已经检查了i+1行,所以此处只到endRow-1)
                if (i == endRow - 1 && startRow != endRow) {
                    MergeCell(table, startRow, endRow, col + 1, endCol, false);
                }
            } else {
                //起始行,终止行不变,检查下一列
                MergeCell(table, startRow, i, col + 1, endCol, false);
                //增加起始行
                startRow = i + 1;
            }
        }
    }
</script>
</body>
</html>

转载于:https://blog.csdn.net/apollokk/article/details/9890751?utm_medium=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-1.nonecase&depth_1-utm_source=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-1.nonecase

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