reader/components/donutBuy/index.wxml

<view class="gradeContainer" catchtouchmove='true' wx:if="{{state}}">
    <view class="popBox zoomIn">
        <view class="title">选择支付方式
            <image src="/static/bclose.png" class="close" bindtap="closeTranscript" />
        </view>
        <radio-group catch:change="radioChange" class="group">
            <label class="weui-cell" wx:for="{{items}}" wx:key="value">
                <view class="pay-row">
                    <image src="/static/{{item.value}}.png" class="{{item.value}}" />
                    <view class="name">{{item.name}}支付</view>
                </view>
                <radio value="{{item.value}}" checked="{{item.checked}}" color='#FFAC00' />
            </label>
        </radio-group>
        <view class="paymentBox">
            <view class="payment">应付款：<view class="num">¥{{product.price/100}}</view>
            </view>
            <view class="pay" bindtap="toBuy">立即支付</view>
        </view>
    </view>
</view>