<popup visible="{{visible}}">
    <view class="alert">
        <view class="icon-alert"></view>
        <view class="content"><slot name="up" /></view>
        <view class="content"><slot name="down" /></view>
        <view class="content"><slot /></view>
        <view class="user-id" wx:if="{{isUserId}}">ID:{{userId}}</view>
    </view>
</popup>