<span>
<el-icon size="14px"><Delete /></el-icon>
<span>删除</span>
</span>
解决方法:加上vertical-align: middle样式就可以了
<span>
<el-icon size="14px" style="vertical-align: middle"><Delete /></el-icon>
<span style="vertical-align: middle">删除</span>
</span>
效果: