不使用.stop的话，当点击删除图标的时候就会执行两个点击事件.
<view class="account-td col3 text-right">
<view class="td-cell">
<view class="u30">
1685.88
</view>
<view class="text-gray u24">
3.01
</view>
</view>
</view>
<view class="account-td col4 text-center">
<view class="td-cell">
<button type="default" class="btn" @click.stop="del()">
<u-icon name="close-circle-fill" color="#057077" size="20"></u-icon>
</button>
</view>
</view>