Detailed introduction to the scroll-view component of WeChat applet

<!--垂直滚动，这里必须设置高度-->
<scroll-view scroll-y="true" style="height: 200px">
 <view style="background: red; width: 100px; height: 100px" ></view>
 <view style="background: green; width: 100px; height: 100px"></view>
 <view style="background: blue; width: 100px; height: 100px"></view>
 <view style="background: yellow; width: 100px; height: 100px"></view>
</scroll-view>

<!-- white-space
 normal: 正常无变化(默认处理方式.文本自动处理换行.假如抵达容器边界内容会转到下一行)
 pre: 保持HTML源代码的空格与换行,等同与pre标签
 nowrap: 强制文本在一行,除非遇到br换行标签
 pre-wrap: 同pre属性,但是遇到超出容器范围的时候会自动换行
 pre-line: 同pre属性,但是遇到连续空格会被看作一个空格
 inherit: 继承
-->
<!--水平滚动-->
<scroll-view scroll-x="true" style=" white-space: nowrap; display: flex" >
<!-- display: inline-block-->
 <view style="background: red; width: 200px; height: 100px; display: inline-block" ></view>
 <view style="background: green; width: 200px; height: 100px; display: inline-block"></view>
 <view style="background: blue; width: 200px; height: 100px; display: inline-block"></view>
 <view style="background: yellow; width: 200px; height: 100px; display: inline-block"></view>
</scroll-view>