

style中
.table :empty::before {
content: "--";
color: gray;
}注意:如果使用了switch滑块、steps步骤条等,可能也会被加上--,效果就变成了

解决:
template中,给switch滑块加class
<el-table-column label="状态" width="90" prop="status" align="center">
<template slot-scope="scope">
<el-switch
v-model="scope.row.status"
@change="statusMonitor(scope.$index, scope.row)"
:active-value="0"
:inactive-value="1"
class="status"
>
</el-switch>
</template>
</el-table-column>style中
.status :empty::before {
content: "";
color: red;
} <el-table-column label="维护开始时间" align="center" width="180">
<template slot-scope="scope">{{
scope.row.startTime ? scope.row.startTime : "--"
}}</template>
</el-table-column>下班~