<template>
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<!--本文件由FirstUI授权予四川政采招投标咨询有限公司（会员ID： 163，营业执照号：91 5101 3 1 3 3 20 0 6193 K）专用，请尊重知识产权，勿私下传播，违者追究法律责任。-->
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<view class="fui-grid__wrap" :class="[isShow?'fui-grid__wrap-show':'fui-grid__wrap-hidden']">
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<view :id="elemId" ref="fui_grid" class="fui-grid"
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:class="{ 'fui-grid__border': showBorder,'fui-grid__between':between }"
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:style="{ 'border-left-color':borderColor,'border-top-color':borderColor}">
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<slot></slot>
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<!-- #ifndef APP-VUE || H5 || MP-WEIXIN -->
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<template v-if="seats.length > 0 && between">
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<view v-for="(item,index) in seats" :key="index"
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:style="'width:'+width+';'+(height?'height:'+height:'')"></view>
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</template>
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<!-- #endif -->
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</view>
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</view>
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</template>
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<script>
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// #ifdef APP-NVUE
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const dom = uni.requireNativePlugin('dom');
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// #endif
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export default {
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name: "fui-grid",
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emits: ['click'],
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props: {
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// 每行显示个数
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columns: {
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type: Number,
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default: 3
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},
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// 是否显示边框
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showBorder: {
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type: Boolean,
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default: true
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},
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// 边框颜色 仅nvue有效
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borderColor: {
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type: String,
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default: '#EEEEEE'
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},
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// 是否正方形显示,默认为 true
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square: {
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type: Boolean,
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default: true
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},
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// item 项是否两端对齐，仅在宽度无法拉满且影响美观时使用，谨慎使用 v2.0.0+
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between: {
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type: Boolean,
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default: false
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},
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//当数据无法铺满时，且设置了between 布局，末尾补足占位元素个数
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//最后一行数据个数+emptyElements 不可大于 columns 值
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emptyElements: {
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type: [Number, String],
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default: 0
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}
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},
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provide() {
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return {
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grid: this
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}
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},
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data() {
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const elemId = `fui_${Math.ceil(Math.random() * 10e5).toString(36)}`
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return {
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elemId: elemId,
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width: 0,
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height: 0,
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isShow: false,
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seats: []
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};
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},
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created() {
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this.children = []
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let sys = uni.getSystemInfoSync()
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this.width = (100 / this.columns) + '%'
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if (this.square) {
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this.height = parseInt((sys.windowWidth - 1) / this.columns * 10) / 10 + 'px'
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}
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},
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watch: {
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columns(val) {
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this.$nextTick(() => {
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this.init()
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})
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},
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showBorder(val) {
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this.childChange()
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},
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emptyElements(val) {
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this.createEmptyEl(val)
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}
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},
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mounted() {
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this.$nextTick(() => {
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this.init()
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this.createEmptyEl(this.emptyElements)
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})
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},
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methods: {
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init() {
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setTimeout(() => {
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this.getWidth((width, height) => {
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this.children.forEach((item, index) => {
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item.width = width
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item.height = height
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})
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this.isShow = true
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})
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}, 50)
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},
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createEmptyEl(val) {
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// 百度小程序在页面循环数字有问题
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const nums = Number(val)
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let seats = []
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if (nums && nums > 0) {
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for (let i = 0; i < nums; i++) {
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seats.push(i)
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}
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this.seats = seats
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} else {
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this.seats = []
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}
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},
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childChange() {
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this.children.forEach((item, index) => {
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item.showBorder = this.showBorder
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})
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},
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handleClick(e) {
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this.$emit('click', e)
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},
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getWidth(fn) {
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let isNoSupported = false
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// #ifdef MP-BAIDU || MP-TOUTIAO || MP-QQ || MP-KUAISHOU || MP-JD || MP-360 || MP-LARK
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isNoSupported = true
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// #endif
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// #ifndef APP-NVUE
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this.width = (100 / this.columns) + '%'
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if (this.square || isNoSupported) {
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uni.createSelectorQuery()
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// #ifndef MP-ALIPAY
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.in(this)
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// #endif
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.select(`#${this.elemId}`)
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.boundingClientRect()
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.exec(ret => {
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//使用 parseInt 不使用 Number 避免 部分android机 换行（小数渲染有兼容性问题） ，但是可能会出现误差无法铺满
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let width = (ret[0].width - 1) / this.columns
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width = (parseInt(width * 10) / 10) + 'px'
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if (this.square)
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this.height = width;
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if (isNoSupported)
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this.width = width;
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fn(this.width, this.height)
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})
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} else {
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fn(this.width, this.height)
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}
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// #endif
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// #ifdef APP-NVUE
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dom.getComponentRect(this.$refs['fui_grid'], (ret) => {
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//使用 parseInt 不使用 Number 可避免 部分android机 换行，但是可能会出现误差无法铺满
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// 注：以真机测试为准，如果还有换行，则只能不保留小数
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let width = (ret.size.width - 1) / this.columns
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this.width = parseInt(width * 10) / 10 + 'px'
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if (this.square) {
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this.height = this.width;
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}
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fn(this.width, this.height)
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})
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// #endif
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}
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}
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}
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</script>
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<style scoped>
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.fui-grid__wrap {
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/* #ifndef APP-NVUE */
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width: 100%;
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display: flex;
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box-sizing: border-box;
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/* #endif */
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/* #ifdef APP-NVUE */
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flex: 1;
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/* #endif */
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flex-direction: column;
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/* 以下css可能导致数据过多nvue端直接白屏不显示 */
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/* #ifndef APP-NVUE */
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transition-property: opacity;
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transition-duration: .2s;
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transition-timing-function: ease-in-out;
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/* #endif */
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}
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.fui-grid__wrap-hidden {
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opacity: 0;
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}
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.fui-grid__wrap-show {
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opacity: 1 !important;
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}
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.fui-grid {
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/* #ifndef APP-NVUE */
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display: flex;
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width: 100%;
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/* #endif */
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flex-direction: row;
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flex-wrap: wrap;
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}
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/* #ifndef APP-VUE || H5 || MP-WEIXIN */
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.fui-grid__between {
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justify-content: space-between;
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}
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/* #endif */
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.fui-grid__border {
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position: relative;
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/* #ifdef APP-NVUE */
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border-left-style: solid;
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border-left-width: 0.5px;
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border-top-style: solid;
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border-top-width: 0.5px;
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/* #endif */
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/* #ifndef APP-NVUE */
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z-index: 1;
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border-left: 0;
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/* #endif */
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}
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/* #ifndef APP-NVUE */
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.fui-grid__border::before {
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content: ' ';
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position: absolute;
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left: 0;
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top: 0;
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width: 100%;
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height: 1px;
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border-top: 1px solid var(--fui-color-border, #EEEEEE);
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-webkit-transform-origin: 0 0;
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transform-origin: 0 0;
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-webkit-transform: scaleY(0.5);
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transform: scaleY(0.5);
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z-index: 1;
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}
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.fui-grid__border::after {
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content: ' ';
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position: absolute;
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left: 0;
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top: 0;
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width: 1px;
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height: 100%;
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border-left: 1px solid var(--fui-color-border, #EEEEEE);
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-webkit-transform-origin: 0 0;
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transform-origin: 0 0;
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-webkit-transform: scaleX(0.5);
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transform: scaleX(0.5);
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}
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/* #endif */
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</style>
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