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			175 lines
		
	
	
		
			4.4 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
			
		
		
	
	
			175 lines
		
	
	
		
			4.4 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
| ## Coupon 优惠券选择器
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| 
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| <script>
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| import { Toast } from 'packages';
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| 
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| const coupon = {
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|   available: 1,
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|   discount: 0,
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|   denominations: 150,
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|   origin_condition: 0,
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|   reason: '',
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|   value: 150,
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|   condition: '下单立减 1.50 元',
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|   name: '新手专用优惠券',
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|   start_at: 1489104000,
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|   end_at: 1514592000
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| };
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| 
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| const discountCoupon = {
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|   ...coupon,
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|   discount: 88,
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|   denominations: 0,
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|   origin_condition: 50,
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|   value: 12,
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|   condition: '下单即享 8.8 折',
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| };
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| 
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| const disabledCoupon = {
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|   ...coupon,
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|   avaliable: 0,
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|   reason: '未满足使用门槛'
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| };
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| 
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| const disabledDiscountCoupon = {
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|   ...discountCoupon,
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|   avaliable: 0,
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|   reason: '未满足使用门槛'
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| };
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| 
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| export default {
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|   data() {
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|     return {
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|       showList: false,
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|       chosenCoupon: -1,
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|       coupons: [coupon, discountCoupon],
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|       disabledCoupons: [disabledCoupon, disabledDiscountCoupon]
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|     }
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|   },
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| 
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|   methods: {
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|     onChange(index) {
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|       this.chosenCoupon = index;
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|     },
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|     onExchange(code) {
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|       Toast('兑换成功');
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|       this.coupons.push(coupon);
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|     }
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|   }
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| }
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| </script>
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| 
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| ### 使用指南
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| ``` javascript
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| import { CouponCell, CouponList } from 'vant';
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| 
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| Vue.component(CouponCell.name, CouponCell);
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| Vue.component(CouponList.name, CouponList);
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| ```
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| 
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| ### 代码演示
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| 
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| #### 基础用法
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| 
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| :::demo 基础用法
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| ```html
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| <!-- 优惠券单元格 -->
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| <van-coupon-cell
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|   :coupons="coupons"
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|   :chosen-coupon="chosenCoupon"
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|   @click="showList = true"
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| ></van-coupon-cell>
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| 
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| <!-- 优惠券列表 -->
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| <van-coupon-list
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|   v-model="showList"
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|   :coupons="coupons"
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|   :chosen-coupon="chosenCoupon"
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|   :disabled-coupons="disabledCoupons"
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|   @change="onChange"
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|   @exchange="onExchange"
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| ></van-coupon-list>
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| ```
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| 
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| ```javascript
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| const coupon = {
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|   available: 1,
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|   discount: 0,
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|   denominations: 150,
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|   origin_condition: 0,
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|   reason: '',
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|   value: 150,
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|   condition: '下单立减 1.50 元',
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|   name: '新手专用优惠券',
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|   start_at: 1489104000,
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|   end_at: 1514592000
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| };
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| 
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| export default {
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|   data() {
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|     return {
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|       chosenCoupon: -1,
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|       coupons: [coupon],
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|       disabledCoupons: [coupon]
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|     }
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|   },
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| 
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|   methods: {
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|     onChange(index) {
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|       this.chosenCoupon = index;
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|     },
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|     onExchange(code) {
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|       this.coupons.push(coupon);
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|     }
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|   }
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| }
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| ```
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| :::
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| 
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| ### CouponCell API
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| 
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| | 参数       | 说明      | 类型       | 默认值       | 必须      |
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| |-----------|-----------|-----------|-------------|-------------|
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| | title | 单元格标题 | `String` | `优惠` | - |
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| | chosenCoupon | 当前选中优惠券的索引 | `Number` | `-1` | - |
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| | coupons | 可用优惠券列表 | `Array` | `[]` | - |
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| | editable | 能否切换优惠券 | `Boolean` | `true` | - |
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| 
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| ### CouponList API
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| 
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| | 参数       | 说明      | 类型       | 默认值       | 必须      |
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| |-----------|-----------|-----------|-------------|-------------|
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| | v-model | 是否展示优惠券列表 | `Boolean` | `false` | - |
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| | chosenCoupon | 当前选中优惠券的索引 | `Number` | `-1` | - |
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| | coupons | 可用优惠券列表 | `Array` | `[]` | - |
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| | disabledCoupons | 不可用优惠券列表 | `Array` | `[]` | - |
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| | exchangeButtonText | 兑换按钮文字 | `String` | `兑换` | - |
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| | exchangeButtonDisabled | 是否禁用兑换按钮 | `Boolean` | `false` | - |
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| | displayedCouponIndex | 滚动至特定优惠券位置 | `Number` | - | - |
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| | closeButtonText | 列表底部按钮文字 | `String` | 不使用优惠 | - |
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| | disabledListTitle | 不可用券列表标题 | `String` | 不可用优惠 | - |
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| | inputPlaceholder | 输入框文字提示 | `String` | 请输入优惠码 | - |
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| 
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| ### CouponList Event
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| 
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| | 事件名       | 说明      | 参数       |
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| |-----------|-----------|-----------|
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| | change | 优惠券切换回调 | index, 选中优惠券的索引 |
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| | exchange | 兑换优惠券回调 | code, 兑换码 |
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| 
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| ### 数据格式
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| #### 优惠券字段说明
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| | key       | 说明      | 类型       |
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| |-----------|-----------|-----------|
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| | id | 优惠券 id | `String` |
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| | name | 优惠券名称 | `String` |
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| | available | 是否可用, 1:可用,0:不可用 | `Number` |
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| | discount | 折扣(0为满减券)88=>8.8折 | `Number` |
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| | denominations | 面值(0为折扣券)单位分 | `Number` |
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| | origin_condition | 满减条件(0为无门槛,满XX元可用)单位分 | `Number` |
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| | start_at | 	卡有效开始时间 | `Number` |
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| | end_at | 卡失效日期 | `Number` |
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| | reason | 不可用原因 | `String` |
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| | value | 订单优惠金额,单位分 | `Number` |
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| | condition | 格式化输出 value | `String` |
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