66 lines
2.7 KiB
Markdown
66 lines
2.7 KiB
Markdown
---
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title: CountDown 倒计时
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description: 用于实时展示倒计时数值。
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spline: data
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isComponent: true
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---
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<span class="coverages-badge" style="margin-right: 10px"><img src="https://img.shields.io/badge/coverages%3A%20lines-99%25-blue" /></span><span class="coverages-badge" style="margin-right: 10px"><img src="https://img.shields.io/badge/coverages%3A%20functions-100%25-blue" /></span><span class="coverages-badge" style="margin-right: 10px"><img src="https://img.shields.io/badge/coverages%3A%20statements-99%25-blue" /></span><span class="coverages-badge" style="margin-right: 10px"><img src="https://img.shields.io/badge/coverages%3A%20branches-85%25-blue" /></span>
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## 引入
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全局引入，在 miniprogram 根目录下的`app.json`中配置，局部引入，在需要引入的页面或组件的`index.json`中配置。
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```json
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"usingComponents": {
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"t-count-down": "tdesign-miniprogram/count-down/count-down"
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}
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```
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## 代码演示
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### 基础倒计时
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{{ base }}
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### 调整尺寸
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{{ size }}
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## API
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### CountDown Props
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名称 | 类型 | 默认值 | 说明 | 必传
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-- | -- | -- | -- | --
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auto-start | Boolean | true | 是否自动开始倒计时 | N
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content | String / Slot | 'default' | 最终倒计时的展示内容，值为'default'时使用默认的格式，否则使用自定义样式插槽 | N
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format | String | HH:mm:ss | 时间格式，DD-日，HH-时，mm-分，ss-秒，SSS-毫秒 | N
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millisecond | Boolean | false | 是否开启毫秒级渲染 | N
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size | String `v0.5.1` | 'medium' | 倒计时尺寸。可选项：small/medium/large | N
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split-with-unit `v0.5.1` | Boolean | false | 使用时间单位分割 | N
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theme | String `v0.5.1` | 'default' | 倒计时风格。可选项：default/round/square | N
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time | Number | - | 必需。倒计时时长，单位毫秒 | Y
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### CountDown Events
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名称 | 参数 | 描述
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-- | -- | --
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change | `(time: TimeData)` | 时间变化时触发。[详细类型定义](https://github.com/Tencent/tdesign-miniprogram/tree/develop/src/count-down/type.ts)。<br/>`interface TimeData { days: number; hours: number; minutes: number; seconds: number; milliseconds: number }`<br/>
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finish | \- | 倒计时结束时触发
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### CountDown 外部样式类
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类名 | 说明
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-- | --
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t-class | 根节点样式类
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t-class-count | 计数样式类
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t-class-split | 分隔线样式类
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### CSS 变量
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组件提供了下列 CSS 变量，可用于自定义样式。
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名称 | 默认值 | 描述
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-- | -- | --
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--td-countdown-bg-color | @error-color-6 | -
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--td-countdown-default-color | @font-gray-1 | -
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--td-countdown-round-border-radius | @radius-circle | -
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--td-countdown-round-color | @font-white-1 | -
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--td-countdown-square-border-radius | @radius-small | -
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