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	使用 uview 重构实际登陆
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								yudao-vue-ui/uni_modules/uview-ui/components/u-grid/props.js
									
									
									
									
									
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										19
									
								
								yudao-vue-ui/uni_modules/uview-ui/components/u-grid/props.js
									
									
									
									
									
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export default {
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    props: {
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        // 分成几列
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        col: {
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            type: [String, Number],
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            default: uni.$u.props.grid.col
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        },
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        // 是否显示边框
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        border: {
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            type: Boolean,
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            default: uni.$u.props.grid.border
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        },
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        // 宫格对齐方式,表现为数量少的时候,靠左,居中,还是靠右
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        align: {
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            type: String,
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            default: uni.$u.props.grid.align
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        }
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    }
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}
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<template>
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	<view
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	    class="u-grid"
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		ref='u-grid'
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	    :style="[gridStyle]"
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	>
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		<slot />
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	</view>
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</template>
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<script>
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	import props from './props.js';
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	/**
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	 * grid 宫格布局
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	 * @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。
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	 * @tutorial https://www.uviewui.com/components/grid.html
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	 * @property {String | Number}	col			宫格的列数(默认 3 )
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	 * @property {Boolean}			border		是否显示宫格的边框(默认 false )
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	 * @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' )
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	 * @property {Object}			customStyle	定义需要用到的外部样式
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	 * @event {Function} click 点击宫格触发
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	 * @example <u-grid :col="3" @click="click"></u-grid>
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	 */
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	export default {
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		name: 'u-grid',
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		mixins: [uni.$u.mpMixin, uni.$u.mixin,props],
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		data() {
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			return {
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				index: 0,
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				width: 0
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			}
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		},
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		watch: {
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			// 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
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			parentData() {
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				if (this.children.length) {
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					this.children.map(child => {
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						// 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)
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						typeof(child.updateParentData) == 'function' && child.updateParentData();
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					})
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				}
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			},
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		},
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		created() {
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			// 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
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			this.children = []
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		},
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		computed: {
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			// 计算父组件的值是否发生变化
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			parentData() {
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				return [this.hoverClass, this.col, this.size, this.border];
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			},
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			// 宫格对齐方式
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			gridStyle() {
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				let style = {};
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				switch (this.align) {
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					case 'left':
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						style.justifyContent = 'flex-start';
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						break;
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					case 'center':
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						style.justifyContent = 'center';
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						break;
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					case 'right':
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						style.justifyContent = 'flex-end';
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						break;
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					default:
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						style.justifyContent = 'flex-start';
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				};
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				return uni.$u.deepMerge(style, uni.$u.addStyle(this.customStyle));
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			}
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		},
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		methods: {
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			// 此方法由u-grid-item触发,用于在u-grid发出事件
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			childClick(name) {
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				this.$emit('click', name)
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			}
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		}
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	};
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</script>
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<style lang="scss" scoped>
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	@import "../../libs/css/components.scss";
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     $u-grid-width:100% !default;
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	.u-grid {
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		/* #ifdef MP */
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		width: $u-grid-width;
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		position: relative;
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		box-sizing: border-box;
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		overflow: hidden;
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		display: block;
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		/* #endif */
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		justify-content: center;
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		/* #ifndef MP */
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		@include flex;
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		flex-wrap: wrap;
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		align-items: center;
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		/* #endif */
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	}
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</style>
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