使用scroll-view

小程序内提供scroll-view组件，可以实现此效果，将scroll-y设置为true.

<scroll-view scroll-y="true" style="height: {{height}}px;" bindscrolltolower="lower" bindchange="loadingChange">
        <block wx:for="{{info}}" wx:for-item="item" wx:key="i">
            <view class="info" bindtap="goAnswer" data-id="{{item.id}}" data-title="{{item.title}}">
                <view class="img" style="background:{{item.backColor}}">
                    <image src="{{item.icon}}" />
                </view>
                <view class="text">
                    <view>{{item.title}}</view>
                    <view>{{item.desc}}</view>
                </view>
            </view>
        </block>
</scroll-view>