/** * desc : 合并指定表格（表格id为table_id）指定列（列数为table_colnum）的相同文本的相邻单元格 * @table_id 表格id : 为需要进行合并单元格的表格的id。如在HTMl中指定表格 id="data" ，此参数应为 #data * @table_colnum : 为需要合并单元格的所在列.参考jQuery中nth-child的参数.若为数字，从最左边第一列为1开始算起;"even" 表示偶数列;"odd" 表示奇数列; "3n+1" 表示的列数为1、4、7、...... * @table_minrow ? : 可选的,表示要合并列的行数最小的列,省略表示从第0行开始 (闭区间) * @table_maxrow ? : 可选的,表示要合并列的行数最大的列,省略表示最大行列数为表格最后一行 (开区间) */function table_rowspan(table_id, table_colnum) { ???if (table_colnum == "even") { ???????table_colnum = "2n"; ???} ???else if (table_colnum == "odd") { ???????table_colnum = "2n+1"; ???} ???else { ???????table_colnum = "" + table_colnum; ???} ???var cols = []; ???var all_row_num = $(table_id + " tr td:nth-child(1)").length; ???var all_col_num = $(table_id + " tr:nth-child(1)").children().length; ???if (table_colnum.indexOf("n") == -1) { ???????cols[0] = table_colnum; ???} ???else { ???????var n = 0; ???????var a = table_colnum.substring(0, table_colnum.indexOf("n")); ???????var b = table_colnum.substring(table_colnum.indexOf("n") + 1); ???????a = a ? parseInt(a) : 1; ???????b = b ? parseInt(b) : 0; ???????while (a * n + b <= all_col_num) { ???????????cols[n] = a * n + b; ???????????n++; ???????} ???} ???var table_minrow = arguments[2] ? arguments[2] : 0; ???var table_maxrow = arguments[3] ? arguments[3] : all_row_num + 1; ???var table_firsttd = ""; ???var table_currenttd = ""; ???var table_SpanNum = 0; ???for (var j = 0; j < cols.length; j++) { ???????$(table_id + " tr td:nth-child(" + cols[j] + ")").slice(table_minrow, table_maxrow).each(function (i) { ???????????var table_col_obj = $(this); ???????????if (table_col_obj.html() != " ") { ???????????????if (i == 0) { ???????????????????table_firsttd = $(this); ???????????????????table_SpanNum = 1; ???????????????} ???????????????else { ???????????????????table_currenttd = $(this); ???????????????????if (table_firsttd.text() == table_currenttd.text()) { ???????????????????????table_SpanNum++; ???????????????????????table_currenttd.hide(); //remove(); ???????????????????????table_firsttd.attr("rowSpan", table_SpanNum); ???????????????????} else { ???????????????????????table_firsttd = $(this); ???????????????????????table_SpanNum = 1; ???????????????????} ???????????????} ???????????} ???????}); ???}}/** * desc : 合并指定表格（表格id为table_id）指定行（行数为table_rownum）的相同文本的相邻单元格 * @table_id 表格id : 为需要进行合并单元格的表格的id。如在HTMl中指定表格 id="data" ，此参数应为 #data * @table_rownum : 为需要合并单元格的所在行.参考jQuery中nth-child的参数.若为数字，从最左边第一列为1开始算起;"even" 表示偶数行;"odd" 表示奇数行; "3n+1" 表示的行数为1、4、7、...... * @table_mincolnum ? : 可选的,表示要合并行中的最小列,省略表示从第0列开始(闭区间) * @table_maxcolnum ? : 可选的,表示要合并行中的最大列,省略表示表格的最大列数(开区间) */function table_colspan(table_id, table_rownum) { ???var table_mincolnum = arguments[2] ? arguments[2] : 0; ???var table_maxcolnum; ???var table_firsttd = ""; ???var table_currenttd = ""; ???var table_SpanNum = 0; ???$(table_id + " tr:nth-child(" + table_rownum + ")").each(function (i) { ???????table_row_obj = $(this).children(); ???????table_maxcolnum = arguments[3] ? arguments[3] : table_row_obj.length; ???????table_row_obj.slice(table_mincolnum, table_maxcolnum).each(function (i) { ???????????if (i == 0) { ???????????????table_firsttd = $(this); ???????????????table_SpanNum = 1; ???????????} else if ((table_maxcolnum > 0) && (i > table_maxcolnum)) { ???????????????return ""; ???????????} else { ???????????????table_currenttd = $(this); ???????????????if (table_firsttd.text() == table_currenttd.text()) { ???????????????????table_SpanNum++; ???????????????????if (table_currenttd.is(":visible")) { ???????????????????????table_firsttd.width(parseInt(table_firsttd.width()) + parseInt(table_currenttd.width())); ???????????????????} ???????????????????table_currenttd.hide(); //remove(); ???????????????????table_firsttd.attr("colSpan", table_SpanNum); ???????????????} else { ???????????????????table_firsttd = $(this); ???????????????????table_SpanNum = 1; ???????????????} ???????????} ???????}); ???});}//调用 ?: 代表把id为recordTb的表格的第一列，相同内容合并table_rowspan("#recordTb",1);
本章引自：http://www.jb51.net/article/81977.htm
jQuery实现HTML表格单元格的合并功能(合并内容相同的行或列)
原文地址：https://www.cnblogs.com/mf001/p/9109161.html