问题：

代码片段：

<template><el-table :data="tableData" stripe style="width: 100%"><el-table-column prop="title" label="标题" width="80px" /><el-table-column prop="name" label="内容" width="80px" /><el-table-column prop="address" label="发布人" width="80px" /><el-table-column prop="date" label="发布时间" width="100px" /><el-table-column label="操作" width="200px"><template #default="scope"><el-button type="primary" size="small" @click="handleEdit(scope.row)">编辑</el-button><el-button type="danger" size="small" @click="handleDelete(scope.row)">删除</el-button></template></el-table-column></el-table>
</template>

解决问题：

1.添加 <el-table-column/>

<template><el-table :data="tableData" stripe style="width: 100%"><el-table-column /><el-table-column prop="title" label="标题" width="80px" /><el-table-column prop="name" label="内容" width="80px" /><el-table-column prop="address" label="发布人" width="80px" /><el-table-column prop="date" label="发布时间" width="100px" /><el-table-column label="操作" width="200px"><template #default="scope"><el-button type="primary" size="small" @click="handleEdit(scope.row)">编辑</el-button><el-button type="danger" size="small" @click="handleDelete(scope.row)">删除</el-button></template></el-table-column></el-table>
</template>

效果：

2.给table添加：display: table-cell;

效果：