| 12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091929394959697 | <template>	<view	    class="u-grid"		ref='u-grid'	    :style="[gridStyle]"	>		<slot />	</view></template><script>	import props from './props.js';	/**	 * grid 宫格布局	 * @description 宫格组件一般用于同时展示多个同类项目的场景,可以给宫格的项目设置徽标组件(badge),或者图标等,也可以扩展为左右滑动的轮播形式。	 * @tutorial https://www.uviewui.com/components/grid.html	 * @property {String | Number}	col			宫格的列数(默认 3 )	 * @property {Boolean}			border		是否显示宫格的边框(默认 false )	 * @property {String}			align		宫格对齐方式,表现为数量少的时候,靠左,居中,还是靠右 (默认 'left' )	 * @property {Object}			customStyle	定义需要用到的外部样式	 * @event {Function} click 点击宫格触发	 * @example <u-grid :col="3" @click="click"></u-grid>	 */	export default {		name: 'u-grid',		mixins: [uni.$u.mpMixin, uni.$u.mixin,props],		data() {			return {				index: 0,				width: 0			}		},		watch: {			// 当父组件需要子组件需要共享的参数发生了变化,手动通知子组件			parentData() {				if (this.children.length) {					this.children.map(child => {						// 判断子组件(u-radio)如果有updateParentData方法的话,就就执行(执行的结果是子组件重新从父组件拉取了最新的值)						typeof(child.updateParentData) == 'function' && child.updateParentData();					})				}			},		},		created() {			// 如果将children定义在data中,在微信小程序会造成循环引用而报错			this.children = []		},		computed: {			// 计算父组件的值是否发生变化			parentData() {				return [this.hoverClass, this.col, this.size, this.border];			},			// 宫格对齐方式			gridStyle() {				let style = {};				switch (this.align) {					case 'left':						style.justifyContent = 'flex-start';						break;					case 'center':						style.justifyContent = 'center';						break;					case 'right':						style.justifyContent = 'flex-end';						break;					default:						style.justifyContent = 'flex-start';				};				return uni.$u.deepMerge(style, uni.$u.addStyle(this.customStyle));			}		},		methods: {			// 此方法由u-grid-item触发,用于在u-grid发出事件			childClick(name) {				this.$emit('click', name)			}		}	};</script><style lang="scss" scoped>	@import "../../libs/css/components.scss";     $u-grid-width:100% !default;	.u-grid {		/* #ifdef MP */		width: $u-grid-width;		position: relative;		box-sizing: border-box;		overflow: hidden;		display: block;		/* #endif */		justify-content: center;		@include flex;		flex-wrap: wrap;		align-items: center;	}</style>
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