背景介绍 “webpack”: “^1.13.2”, “element-ui”: “^1.4.11”, n年前的项目 超过200个路由无法升级 v1部分功能老旧,希望在需要的时候可以使用v2的功能 代码实现 compatibleElementV2.js module.exports = function (source) { return source.replace(/element-ui\//g, "element-v2/"); }; webpack.config.js module.exports = { ... module: { loaders: [ { test: /\.(js|vue)(\?.*$|$)/, include: /node_modules\/element-v2/, loader: path.resolve(__dirname, "./compatibleElementV2.js") }, ] }, ... resolve: { alias: { "element-v2": path.resolve(__dirname, './node_modules/element-v2'), } } ... }; package.json { ... "dependencies": { ... "element-v2": "npm:element-ui@2.15", } ... } 测试代码(官方demo) <template> <div> <el-table :data="tableData" :span-method="arraySpanMethod" border style="width: 100%"> <el-table-column prop="id" label="ID" width="180"> </el-table-column> <el-table-column prop="name" label="姓名"> </el-table-column> <el-table-column prop="amount1" sortable label="数值 1"> </el-table-column> <el-table-column prop="amount2" sortable label="数值 2"> </el-table-column> <el-table-column prop="amount3" sortable label="数值 3"> </el-table-column> </el-table> <el-table :data="tableData" :span-method="objectSpanMethod" border style="width: 100%; margin-top: 20px"> <el-table-column prop="id" label="ID" width="180"> </el-table-column> <el-table-column prop="name" label="姓名"> </el-table-column> <el-table-column prop="amount1" label="数值 1(元)"> </el-table-column> <el-table-column prop="amount2" label="数值 2(元)"> </el-table-column> <el-table-column prop="amount3" label="数值 3(元)"> </el-table-column> </el-table> </div> </template> <script> export default { data() { return { tableData: [{ id: '12987122', name: '王小虎', amount1: '234', amount2: '3.2', amount3: 10 }, { id: '12987123', name: '王小虎', amount1: '165', amount2: '4.43', amount3: 12 }, { id: '12987124', name: '王小虎', amount1: '324', amount2: '1.9', amount3: 9 }, { id: '12987125', name: '王小虎', amount1: '621', amount2: '2.2', amount3: 17 }, { id: '12987126', name: '王小虎', amount1: '539', amount2: '4.1', amount3: 15 }] }; }, methods: { arraySpanMethod({ row, column, rowIndex, columnIndex }) { if (rowIndex % 2 === 0) { if (columnIndex === 0) { return [1, 2]; } else if (columnIndex === 1) { return [0, 0]; } } }, objectSpanMethod({ row, column, rowIndex, columnIndex }) { if (columnIndex === 0) { if (rowIndex % 2 === 0) { return { rowspan: 2, colspan: 1 }; } else { return { rowspan: 0, colspan: 0 }; } } } } }; </script> 测试: