<el-table :data="tableData" style="width: 100%" max-height="250">
<el-table-column fixed prop="aaa" label="日期" width="150" />
<el-table-column prop="bbb" label="日期" width="150" />
<el-table-column prop="ccc" label="日期" width="150" />
<el-table-column prop="ddd" label="日期" width="150">
<template slot="header">
<el-tooltip class="item" effect="dark" content="Top Left 提示文字" placement="top-start">
<p>学不会<i class="el-icon-user"></i></p>
</el-tooltip>
</template>
</el-table-column>
</el-table>
