element-ui 添加空白表格

 <el-table
      :data="tableData"
      style="width: 100%">
      <el-table-column
        #default="{row}"               
        label="日期"
        width="180">
      {{row.date || '&nbsp;'}}
        
      </el-table-column>
      <el-table-column
        prop="name"
        label="姓名"
        width="180">
      </el-table-column>
 </el-table>

<el-table-column
#default="{row}"
label="日期"
width="180">
{{row.date || ' '}}

  </el-table-column>
  <el-table-column
    prop="name"
    label="姓名"
    width="180">
  </el-table-column>

```

     <el-table-column
        prop="name"
        label="姓名"
        width="180">
<template slot-scope="scope">
    {{scope.row.date || '&nbsp;'}}    
</template>
      </el-table-column>