说明：在使用el-table自带的底部合计功能时，初始界面不会显示合计内容
解决方案：使用 doLayout()方法
updated() {this.$nextTick(() => {this.$refs['inventorySumTable'].doLayout();});},
完整代码：
// show-summary：展示合计行// summary-method:自定义合计方法// ref="inventorySumTable"：绑定表格<el-tableborderheight="100%":data="tableList"v-loading="tableLoading"show-summary:summary-method="getSummaries"ref="inventorySumTable":cell-style="changeCellStyle"><el-table-columnlabel="序号"prop="index"type="index"width="55"align="center"header-align="center"></el-table-column><el-table-columnlabel="使用单位(科室)"prop="useDept"align="center"header-align="center"show-overflow-tooltip></el-table-column><el-table-columnlabel="资产分类"prop="typeName"align="center"header-align="center"show-overflow-tooltip></el-table-column><el-table-columnlabel="折旧合计"prop="sumDepreciation"align="center"header-align="center"show-overflow-tooltip></el-table-column></el-table>//定义合计的方法getSummaries(param) {const { columns, data } = param;const sums = [];columns.forEach((column, index) => {if (index === 0) {sums[index] = '合计';return;}const values = data.map(item => Number(item[column.property]));if (!values.every(value => {return isNaN(value);})) {console.log(sums, column.property, 226);if (column.property == 'sumDepreciation') {sums[index] = values.reduce((prev, curr) => {const value = Number(curr);if (!isNaN(value)) {return prev + curr;} else {return prev;}}, 0);}if (column.property == 'sumDepreciation') {return (sums[index] = this.formatePrice(sums[index]));}} else {sums[index] = '';}});return sums;},
效果展示：
