刚看到这个效果的时候还真是和ReactNative的效果一致，属性也基本的一样. 
view这个组件就是一个视图组件使用起来非常简单。

主要属性：

flex-direction： 主要两个特性”row”横向排列”column”纵向排列

justify-content 主轴的对齐方式（如果flex-direction为row则主轴就是水平方向）

• 可选属性 (‘flex-start’, ‘flex-end’, ‘center’, ‘space-between’, ‘space-around’)

align-items 侧轴对齐方式如果flex-direction为row则侧轴就是垂直方向）

• 可选属性 (‘flex-start’, ‘flex-end’, ‘center’）

wxml

<view class="page">
    <view class="page__hd">
        <text class="page__title">view</text>
        <text class="page__desc">弹性框模型分为弹性容器以及弹性项目。当组件的display为flex或inline-flex时，该组件则为弹性容器，弹性容器的子组件为弹性项目。</text>
    </view>
    <view class="page__bd">
        <view class="section">
            <view class="section__title">flex-direction: row</view>
            <view class="flex-wrp" style="flex-direction:row;">
                <view class="flex-item" style="background: red"></view>
                <view class="flex-item" style="background: green"></view>
                <view class="flex-item" style="background: blue"></view>
            </view>
        </view>
        <view class="section">
            <view class="section__title">flex-direction: column</view>
            <view class="flex-wrp" style="height: 300px;flex-direction:column;">
                <view class="flex-item" style="background: red"></view>
                <view class="flex-item" style="background: green"></view>
                <view class="flex-item" style="background: blue"></view>
            </view>
        </view>
        <view class="section">
            <view class="section__title">justify-content: flex-start</view>
            <view class="flex-wrp" style="flex-direction:row;justify-content: flex-start;">
                <view class="flex-item" style="background: red"></view>
                <view class="flex-item" style="background: green"></view>
                <view class="flex-item" style="background: blue"></view>
            </view>
        </view>
        <view class="section">
            <view class="section__title">justify-content: flex-end</view>
            <view class="flex-wrp" style="flex-direction:row;justify-content: flex-end;">
                <view class="flex-item" style="background: red"></view>
                <view class="flex-item" style="background: green"></view>
                <view class="flex-item" style="background: blue"></view>
            </view>
        </view>
        <view class="section">
            <view class="section__title">justify-content: center</view>
            <view class="flex-wrp" style="flex-direction:row;justify-content: center;">
                <view class="flex-item" style="background: red"></view>
                <view class="flex-item" style="background: green"></view>
                <view class="flex-item" style="background: blue"></view>
            </view>
        </view>
        <view