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## Layout 布局
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> **组件名 uni-row、uni-col**
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> 代码块: `uRow`、`uCol`
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流式栅格系统,随着屏幕或视口分为 24 份,可以迅速简便地创建布局。
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### 安装方式
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本组件符合[easycom](https://uniapp.dcloud.io/collocation/pages?id=easycom)规范,`HBuilderX 2.5.5`起,只需将本组件导入项目,在页面`template`中即可直接使用,无需在页面中`import`和注册`components`。
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如需通过`npm`方式使用`uni-ui`组件,另见文档:[https://ext.dcloud.net.cn/plugin?id=55](https://ext.dcloud.net.cn/plugin?id=55)
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> **注意事项**
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> 为了避免错误使用,给大家带来不好的开发体验,请在使用组件前仔细阅读下面的注意事项,可以帮你避免一些错误。
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> - 组件需要依赖 `sass` 插件 ,请自行手动安装
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> - 如使用过程中有任何问题,或者您对 uni-ui 有一些好的建议,欢迎加入 uni-ui 交流群:871950839
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>
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### 基本用法
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###### 使用单一分栏创建基础的栅格布局
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```html
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<uni-row class="demo-uni-row">
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<uni-col>
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<view class="demo-uni-col dark_deep"></view>
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</uni-col>
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</uni-row>
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<uni-row class="demo-uni-row">
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<uni-col :span="12">
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<view class="demo-uni-col dark"></view>
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</uni-col>
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<uni-col :span="12">
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<view class="demo-uni-col light"></view>
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</uni-col>
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</uni-row>
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```
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### 分栏偏移
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###### 支持偏移指定的栏数
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```html
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<uni-row class="demo-uni-row">
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<uni-col :span="8">
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<view class="demo-uni-col dark"></view>
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</uni-col>
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<uni-col :span="8" :offset="6">
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<view class="demo-uni-col dark"></view>
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</uni-col>
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</uni-row>
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<uni-row class="demo-uni-row">
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<uni-col :span="12" :pull="6">
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<view class="demo-uni-col dark"></view>
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</uni-col>
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</uni-row>
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<uni-row class="demo-uni-row">
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<uni-col :span="12" :push="6">
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<view class="demo-uni-col dark"></view>
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</uni-col>
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</uni-row>
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```
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### 响应式布局
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###### 共五个响应尺寸:xs、sm、md、lg 和 xl
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```html
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<uni-row class="demo-uni-row">
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<uni-col :xs="8" :sm="6" :md="4" :lg="3" :xl="1">
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<view class="demo-uni-col dark"></view>
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</uni-col>
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<uni-col :xs="4" :sm="6" :md="8" :lg="9" :xl="11">
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<view class="demo-uni-col light"></view>
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</uni-col>
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<uni-col :xs="4" :sm="6" :md="8" :lg="9" :xl="11">
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<view class="demo-uni-col dark"></view>
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</uni-col>
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<uni-col :xs="8" :sm="6" :md="4" :lg="3" :xl="1">
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<view class="demo-uni-col light"></view>
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</uni-col>
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</uni-row>
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```
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###### 使用到的 CSS
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```css
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.demo-uni-row {
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margin-bottom: 10px;
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/* QQ、字节小程序文档写有 :host,但实测不生效 */
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/* 百度小程序没有 :host,需要设置block */
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/* #ifdef MP-TOUTIAO || MP-QQ || MP-BAIDU */
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display: block;
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/* #endif */
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}
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/* 支付宝小程序没有 demo-uni-row 层级 */
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/* 微信小程序使用了虚拟化节点,没有 demo-uni-row 层级 */
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/* #ifdef MP-ALIPAY || MP-WEIXIN */
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/deep/ .uni-row {
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margin-bottom: 10px;
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}
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/* #endif */
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.demo-uni-col {
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height: 36px;
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border-radius: 4px;
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}
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.dark_deep {
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background-color: #99a9bf;
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}
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.dark {
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background-color: #d3dce6;
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}
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.light {
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background-color: #e5e9f2;
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}
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```
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### 平台差异说明
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### `uni-row`
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| 属性名 | App(nvue) | App(vue) | H5 | 微信小程序 | 支付宝小程序 | 百度小程序 | 字节跳动小程序 | QQ 小程序 |
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| :-: | :-: | :-: | :-: | :-: | :-: | :-: | :-: | :-: |
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| gutter | - | √ | √ | √ | √ | √ | √ | √ |
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### `uni-col`
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| 属性名 | App(nvue) | App(vue) | H5 | 微信小程序 | 支付宝小程序 | 百度小程序 | 字节跳动小程序 | QQ 小程序 |
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| :-: | :-: | :-: | :-: | :-: | :-: | :-: | :-: | :-: |
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| span | √ | √ | √ | √ | √ | √ | √ | √ |
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| offset | √ | √ | √ | √ | √ | √ | √ | √ |
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| push | √ | √ | √ | √ | √ | √ | √ | √ |
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| pull | √ | √ | √ | √ | √ | √ | √ | √ |
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| xs | - | √ | √ | √ | √ | √ | √ | √ |
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| sm | - | √ | √ | √ | √ | √ | √ | √ |
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| md | - | √ | √ | √ | √ | √ | √ | √ |
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| lg | - | √ | √ | √ | √ | √ | √ | √ |
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| xl | - | √ | √ | √ | √ | √ | √ | √ |
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## API
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### Row Props
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`其他平台`
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| 属性名 | 类型 | 可选值 | 默认值 | 必填 | 说明 |
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| :-: | :-: | :-: | :-: | :-: | :-: |
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| gutter | Number | - | 0 | 否 | 栅格间隔 |
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`nvue平台`
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| 属性名 | 类型 | 可选值 | 默认值 | 必填 | 说明 |
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| :-: | :-: | :-: | :-: | :-: | :-: |
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| width | Number/String | - | `750rpx` | 否 | nvue 中无百分比 width,使用 span 等属性时,需配置此项`rpx值`。此项不会影响其他平台展示效果 |
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### Col Props
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| 属性名 | 类型 | 可选值 | 默认值 | 必填 | 说明 |
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| :-: | :-: | :-: | :-: | :-: | :-: |
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| span | Number | - | 24 | 否 | 栅格占据的列数 |
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| offset | Number | - | - | 否 | 栅格左侧间隔格数 |
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| push | Number | - | - | 否 | 栅格向右偏移格数 |
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| pull | Number | - | - | 否 | 栅格向左偏移格数 |
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| xs | Number/object | - | - | 否 | 屏幕宽度`<768px`时,要显示的栅格规则,如:`:xs="8"`或`:xs="{span: 8, pull: 4}"` |
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| sm | Number/object | - | - | 否 | 屏幕宽度`≥768px`时,要显示的栅格规则 |
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| md | Number/object | - | - | 否 | 屏幕宽度`≥992px`时,要显示的栅格规则 |
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| lg | Number/object | - | - | 否 | 屏幕宽度`≥1200px`时,要显示的栅格规则 |
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| xl | Number/object | - | - | 否 | 屏幕宽度`≥1920px`时,要显示的栅格规则 |
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## 组件示例
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点击查看:[https://hellouniapp.dcloud.net.cn/pages/extUI/row/row](https://hellouniapp.dcloud.net.cn/pages/extUI/row/row) |