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1. 项目初始化与依赖安装

npm init vite@latest excel-editor --template vue-ts  
cd excel-editor  
npm install  
npm install xlsx file-saver handsontable @handsontable/vue  
npm install -D tailwindcss postcss autoprefixer  
npx tailwindcss init -p  

在 main.ts 中引入 Tailwind：

import './index.css'  

---

2. 表格组件设计（基于 Handsontable）

我们封装一个 ExcelEditor.vue 组件，使用 @handsontable/vue：

<template>  <hot-table  ref="hotTableRef"  :settings="settings"  licenseKey="non-commercial-and-evaluation"  />  
</template>  <script setup lang="ts">  
import { ref } from 'vue'  
import { HotTable } from '@handsontable/vue'  
import Handsontable from 'handsontable'  const hotTableRef = ref()  
const settings = {  data: Handsontable.helper.createEmptySpreadsheetData(20, 10),  rowHeaders: true,  colHeaders: true,  contextMenu: true,  mergeCells: [],  manualRowResize: true,  manualColumnResize: true,  comments: true,  cells(row: number, col: number) {  return { className: '' }  }  
}  
</script>  

---

3. 导入功能：支持 .xlsx / .csv

import * as XLSX from 'xlsx'  const handleFileUpload = (file: File) => {  const reader = new FileReader()  reader.onload = (e) => {  const data = new Uint8Array(e.target!.result as ArrayBuffer)  const workbook = XLSX.read(data, { type: 'array' })  const sheet = workbook.Sheets[workbook.SheetNames[0]]  const json = XLSX.utils.sheet_to_json(sheet, { header: 1 })  hotTableRef.value.hotInstance.loadData(json)  }  reader.readAsArrayBuffer(file)  
}  

---

4. 导出功能：带样式 & 合并信息

import { saveAs } from 'file-saver'  const exportToExcel = () => {  const hot = hotTableRef.value.hotInstance  const data = hot.getData()  const ws = XLSX.utils.aoa_to_sheet(data)  const merges = hot.getPlugin('mergeCells').mergedCellsCollection.mergedCells  ws['!merges'] = merges.map(m => ({  s: { r: m.row, c: m.col },  e: { r: m.row + m.rowspan - 1, c: m.col + m.colspan - 1 }  }))  const wb = XLSX.utils.book_new()  XLSX.utils.book_append_sheet(wb, ws, 'Sheet1')  const wbout = XLSX.write(wb, { bookType: 'xlsx', type: 'array' })  saveAs(new Blob([wbout]), 'table.xlsx')  
}  

---

5. 样式同步实现方案

const cellStyles = new Map<string, any>()  const updateCellStyle = (row: number, col: number, style: any) => {  const key = `${row}_${col}`  cellStyles.set(key, style)  
}  cells(row, col) {  const key = `${row}_${col}`  const style = cellStyles.get(key) || {}  return {  renderer(hotInstance, td, row, col, prop, value) {  td.style.backgroundColor = style.backgroundColor || ''  td.style.fontWeight = style.fontWeight || ''  td.innerText = value  return td  }  }  
}  

---

6. 合并单元格功能逻辑

const mergeSelectedCells = () => {  const hot = hotTableRef.value.hotInstance  const selected = hot.getSelectedLast()  if (!selected) return  const [startRow, startCol, endRow, endCol] = selected  hot.getPlugin('mergeCells').merge({  row: Math.min(startRow, endRow),  col: Math.min(startCol, endCol),  rowspan: Math.abs(endRow - startRow) + 1,  colspan: Math.abs(endCol - startCol) + 1,  })  hot.render()  
}  

---

7. 拓展功能建议 + 示例代码

✅ 设置单元格背景色按钮

<button @click="setCurrentCellStyle({ backgroundColor: '#ffff99' })">  高亮当前单元格  
</button>  const setCurrentCellStyle = (style: any) => {  const hot = hotTableRef.value.hotInstance  const [row, col] = hot.getSelectedLast() || []  updateCellStyle(row, col, style)  hot.render()  

✅ 支持 JSON 数据导出保存

const getJsonData = () => {  const data = hotTableRef.value.hotInstance.getData()  return JSON.stringify(data)  
}  

---

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