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原文链接：Element Plus el-table 自定义合并行和列

前言

目标效果是将表格行数据中某个属性值相同的项合并到一起，效果如下：

import type { TableColumnCtx } from "element-plus"const tableData = [  { "Available": 0, "Capacity": 0, "Name": "test05", "Status": 0, "StoAlias": "test", "Type": 0, "Used": 0 },  { "Available": 0, "Capacity": 0, "Name": "test01", "Status": 0, "StoAlias": "169.254.218", "Type": 0, "Used": 0 },  { "Available": 0, "Capacity": 0, "Name": "tset03", "Status": 0, "StoAlias": "test", "Type": 1, "Used": 0 },  { "Available": 0, "Capacity": 0, "Name": "test02", "Status": 0, "StoAlias": "test03", "Type": 0, "Used": 0 },  { "Available": 0, "Capacity": 0, "Name": "test06", "Status": 0, "StoAlias": "test03", "Type": 0, "Used": 0 },  { "Available": 0, "Capacity": 0, "Name": "test04", "Status": 0, "StoAlias": "169.254.218", "Type": 0, "Used": 0 },  { "Available": 0, "Capacity": 0, "Name": "test07", "Status": 0, "StoAlias": "169.254.218", "Type": 1, "Used": 0 }]let cellList: any[] = [] // 单元格数组let count: number = 0 // 计数const computeCell = (tableList: any[]) => {  cellList = []  count = 0  for (let i = 0; i < tableList.length; i++) {    if (i === 0) {      // 先设置第一项      cellList.push(1); // 初为1，若下一项和此项相同，就往cellList数组中追加0      count = 0; // 初始计数为0    } else {      if (tableList[i].StoAlias == tableList[i - 1].StoAlias) {        cellList[count] += 1; // 增加计数        cellList.push(0); // 相等就往cellList数组中追加0      } else {        cellList.push(1); // 不等就往cellList数组中追加1        count = i; // 将索引赋值为计数      }    }  }}const sortArray = (x: any, y: any) => {  if (x.StoAlias < y.StoAlias) { return -1 }  else if (x.StoAlias > y.StoAlias) { return 1 }  else { return 0 }}interface SpanMethodProps {  row: StoragePoolItem  column: TableColumnCtx  rowIndex: number  columnIndex: number}const spanMethod = ({  rowIndex,  columnIndex,}: SpanMethodProps) => {    computeCell(tableData.sort(sortArray))    if (columnIndex === 0) {      const fRow = cellList[rowIndex]      const fCol = fRow > 0 ? 1 : 0      return {        rowspan: fRow, // 合并的行数        colspan: fCol // 合并的列数，为0表示不显示      }    }}

sortArray()此方法根据目标属性值（StoAlias）排序了。

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