applet_mall/page/component/details/details.wxml

<view class="main">
    <view class="goods-box">
        <image src="{{goods.image}}" class="goods-thumb"></image>
        
        <navigator open-type="switchTab" url="../cart/cart">
            <view class="carts-icon {{scaleCart?'on':''}}">
                <image src="/image/cart2.png"></image>
                <text class="carts-icon-num" wx:if="{{hasCarts}}">{{totalNum}}</text>
            </view>
        </navigator>
        
        <view class="goods-operation">
            <text class="goods-operation-num">数量  {{num}}</text>
            <text class="goods-operation-add" bindtap="addCount">+</text>
            <text class="goods-to-cart" bindtap="addToCart">加入购物车</text>
            <image src="/image/cart1.png"  class="goods-cart-img" bindtap="addToCart"></image>
        </view>
        <image wx:if="{{show}}" src="/image/cart1.png" class="to-carts-icon"></image>
        <view class="goods-stock">{{goods.stock}}</view>
        <view class="goods-title">{{goods.title}}</view>
        <view class="goods-price">￥ {{goods.price}}</view>
    </view>
    <view class="goods-tab-box">
        <view class="goods-tab-nav {{curIndex === 0 ?'on':''}}" bindtap="bindTap" data-index="0">商品详情</view>
        <view class="goods-tab-nav {{curIndex === 1 ?'on':''}}" bindtap="bindTap" data-index="1">产品参数</view>
        <view class="goods-tab-nav {{curIndex === 2 ?'on':''}}" bindtap="bindTap" data-index="2">售后保障</view>
        <view class="goods-content">
            <view wx:if="{{curIndex === 0}}">{{goods.detail}}</view>
            <view wx:if="{{curIndex === 1}}">{{goods.parameter}}</view>
            <view wx:if="{{curIndex === 2}}">{{goods.service}}</view>
        </view>
    </view>
</view>