applet/components/tab/index.wxml

<view class="tab">
        <view class="swiper-tab">
            <view class="swiper-tab-item {{active==item.active?'active':''}}" wx:for="{{tabList}}" wx:key="index" wx:for-item="item" data-active="{{item.active}}" bindtap="clickTab">
                {{item.title}}
            </view>
        </view>
        <swiper class='swiper' current="{{active}}" duration="300" bindchange="swiperTab">
            <swiper-item wx:for="{{tabList}}" wx:key="index" wx:for-item="item">
                <slot></slot>
            </swiper-item>
        </swiper>
    </view>