<template>
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<view class="u-col" :class="[
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'u-col-' + span
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]" :style="{
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padding: `0 ${Number(gutter)/2 + 'rpx'}`,
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marginLeft: 100 / 12 * offset + '%',
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flex: `0 0 ${100 / 12 * span}%`,
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alignItems: uAlignItem,
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justifyContent: uJustify,
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textAlign: textAlign
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}"
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@tap="click">
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<slot></slot>
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</view>
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</template>
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<script>
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/**
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* col 布局单元格
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* @description 通过基础的 12 分栏，迅速简便地创建布局（搭配<u-row>使用）
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* @tutorial https://www.uviewui.com/components/layout.html
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* @property {String Number} span 栅格占据的列数，总12等分（默认0）
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* @property {String} text-align 文字水平对齐方式（默认left）
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* @property {String Number} offset 分栏左边偏移，计算方式与span相同（默认0）
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* @example <u-col span="3"><view class="demo-layout bg-purple"></view></u-col>
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*/
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export default {
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name: "u-col",
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props: {
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// 占父容器宽度的多少等分，总分为12份
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span: {
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type: [Number, String],
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default: 12
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},
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// 指定栅格左侧的间隔数(总12栏)
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offset: {
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type: [Number, String],
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default: 0
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},
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// 水平排列方式，可选值为`start`(或`flex-start`)、`end`(或`flex-end`)、`center`、`around`(或`space-around`)、`between`(或`space-between`)
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justify: {
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type: String,
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default: 'start'
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},
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// 垂直对齐方式，可选值为top、center、bottom
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align: {
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type: String,
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default: 'center'
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},
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// 文字对齐方式
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textAlign: {
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type: String,
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default: 'left'
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},
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// 是否阻止事件传播
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stop: {
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type: Boolean,
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default: true
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}
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},
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data() {
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return {
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gutter: 20, // 给col添加间距，左右边距各占一半，从父组件u-row获取
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}
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},
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created() {
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this.parent = false;
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},
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mounted() {
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// 获取父组件实例，并赋值给对应的参数
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this.parent = this.$u.$parent.call(this, 'u-row');
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if (this.parent) {
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this.gutter = this.parent.gutter;
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}
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},
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computed: {
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uJustify() {
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if (this.justify == 'end' || this.justify == 'start') return 'flex-' + this.justify;
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else if (this.justify == 'around' || this.justify == 'between') return 'space-' + this.justify;
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else return this.justify;
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},
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uAlignItem() {
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if (this.align == 'top') return 'flex-start';
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if (this.align == 'bottom') return 'flex-end';
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else return this.align;
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}
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},
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methods: {
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click(e) {
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this.$emit('click');
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}
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}
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}
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</script>
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<style lang="scss">
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@import "../../libs/css/style.components.scss";
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.u-col {
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/* #ifdef MP-WEIXIN || MP-QQ || MP-TOUTIAO */
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float: left;
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/* #endif */
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}
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.u-col-0 {
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width: 0;
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}
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.u-col-1 {
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width: calc(100%/12);
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}
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.u-col-2 {
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width: calc(100%/12 * 2);
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}
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.u-col-3 {
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width: calc(100%/12 * 3);
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}
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.u-col-4 {
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width: calc(100%/12 * 4);
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}
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.u-col-5 {
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width: calc(100%/12 * 5);
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}
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.u-col-6 {
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width: calc(100%/12 * 6);
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}
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.u-col-7 {
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width: calc(100%/12 * 7);
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}
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.u-col-8 {
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width: calc(100%/12 * 8);
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}
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.u-col-9 {
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width: calc(100%/12 * 9);
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}
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.u-col-10 {
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width: calc(100%/12 * 10);
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}
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.u-col-11 {
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width: calc(100%/12 * 11);
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}
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.u-col-12 {
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width: calc(100%/12 * 12);
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}
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</style>
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