注意点：

1. <el-table> 中 加:summary-method="getSummaries"

2. <el-table-column> 中要加 prop

// 房间号的合计去掉 getSummaries (param) { const { columns, data } = param const sums = [] columns.forEach((column, index) => { if (index === 0) { sums[index] = '总计' } else if (index === 5 || index === 6) { const values = data.map(item => Number(item[column.property])) if (!values.every(value => isNaN(value))) { sums[index] = values.reduce((prev, curr) => { const value = Number(curr) if (!isNaN(value)) { return prev + curr } else { return prev } }, 0) } else { sums[index] = 'N/A' } } else { sums[index] = '--' } }) return sums }

效果图

补充知识：vue+elementUI的表格最后一行合计自定义显示

1.在看了elementUI的文档后重要的俩个属性是 show-summary :summary-method="getSummaries" getSummaries这个是自定义方法函数的方法。

HTML的代码：

show-summary :summary-method="getSummaries的属性要加上，还有一个很重要的一点就是要 必须要在el-table-column中必须是prop来传值"

<el-table :key='tableKey' :data="listData" show-summary :summary-method="getSummaries" v-loading="listLoading" border fit highlight-current-row style="width:100%;margin-top:8px" :header-cell-style="{background:'oldlace'}">> <el-table-column prop="equipmentType" align="center" label="设备类型" min-width="50"> </el-table-column> <el-table-column prop="equipmentName" align="center" label="设备名称" min-width="50"> </el-table-column> <el-table-column prop="equipmentCode" align="center" label="设备编号" min-width="50"> </el-table-column> <el-table-column prop="openRate" align="center" label="开机率" min-width="50"> </el-table-column> <el-table-column prop="planWorkTime" align="center" label="计划工作时间" min-width="50"> </el-table-column> <el-table-column prop="closeTime" align="center" label="关机时间(h)" min-width="50"> </el-table-column> <el-table-column prop="machiningTime" align="center" label="加工时间(h)" min-width="50"> </el-table-column> <el-table-column prop="stopTime" align="center" label="停工时间(h)" min-width="50"> </el-table-column> <el-table-column prop="debugTime" align="center" label="调试时间(h)" min-width="50"> </el-table-column> <el-table-column align="center" label="查看" min-width="210"> <template slot-scope="scope"> <el-button title="时序图" type="primary" size="mini" @click="profile(scope.row)" v-show="SXTbatshow">时序图</el-button> <el-button title="状态时长统计图" type="danger" size="mini" @click="cartogram(scope.row)">状态时长统计图</el-button> <el-button title="状态占比图" type="success" size="mini" @click="diagram(scope.row)">状态占比图</el-button> </template> </el-table-column> </el-table>

在script要写的代码：

// 表格总计的时间 getSummaries(param) { const { columns, data } = param; const sums = []; columns.forEach((column, index) => { if (index === 0) { sums[index] = '总计'; return; } //this.closeList等等是后台返回的总的数据，然后取值到这里 switch(column.property) { case "closeTime": sums[index] = this.closeList + ' h' break; case "machiningTime": sums[index] = this.machiningTimeList + ' h' break; case "stopTime": sums[index] = this.stopTimeList + ' h' break; case "debugTime": sums[index] = this.debugTimeList + ' h' break; default: break; } }); return sums; },

效果图：

以上这篇vue element-ui中table合计指定列求和实例就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持。