[Improvement] CouponList: support v-model & exchangeButtonLoading (#566)

docs/markdown/en-US/coupon.md

@@ -79,10 +79,12 @@ export default {
 
 | Attribute | Description | Type | Default | Accepted Values |
 |-----------|-----------|-----------|-------------|-------------|
+| v-model | Current exchange code | `String` | - | - |
 | chosen-coupon | Index of chosen coupon | `Number` | `-1` | - |
 | coupons | Coupon list | `Array` | `[]` | - |
 | disabled-coupons | Disabled voupon list | `Array` | `[]` | - |
 | exchange-button-text | Exchange button text | `String` | `Exchange` | - |
+| exchange-button-loading | Whether to show loading in exchange button | `Boolean` | `false` | - |
 | exchange-button-disabled | Whether to disable exchange button | `Boolean` | `false` | - |
 | exchange-min-length | Min length to enable exchange button | `Number` | `1` | - |
 | displayed-coupon-index | Index of displayed coupon | `Number` | - | - |

docs/markdown/zh-CN/coupon.md

@@ -69,7 +69,7 @@ export default {
 
 ### CouponCell API
 
-| 参数 | 说明 | 类型 | 默认值 | 必须 |
+| 参数 | 说明 | 类型 | 默认值 | 可选值 |
 |-----------|-----------|-----------|-------------|-------------|
 | title | 单元格标题 | `String` | `优惠券码` | - |
 | chosen-coupon | 当前选中优惠券的索引 | `Number` | `-1` | - |
@@ -78,12 +78,14 @@ export default {
 
 ### CouponList API
 
-| 参数 | 说明 | 类型 | 默认值 | 必须 |
+| 参数 | 说明 | 类型 | 默认值 | 可选值 |
 |-----------|-----------|-----------|-------------|-------------|
+| v-model | 当前输入的兑换码 | `String` | - | - |
 | chosen-coupon | 当前选中优惠券的索引 | `Number` | `-1` | - |
 | coupons | 可用优惠券列表 | `Array` | `[]` | - |
 | disabled-doupons | 不可用优惠券列表 | `Array` | `[]` | - |
 | exchange-button-text | 兑换按钮文字 | `String` | `兑换` | - |
+| exchange-button-loading | 是否在兑换按钮上显示加载动画 | `Boolean` | `false` | - |
 | exchange-button-disabled | 是否禁用兑换按钮 | `Boolean` | `false` | - |
 | exchange-min-length | 兑换码最小长度 | `Number` | `1` | - |
 | displayed-coupon-index | 滚动至特定优惠券位置 | `Number` | - | - |