element/examples/docs/zh-CN/statistic.md

## Statistic 统计数值

用于突出某个或某组数字时，如显示数值，如金额，排名等。

倒计时模式

### 基础用法

组件提供千分位的展示，不过可以通过 rate 来设置相应万分位等
:::demo
```html
<template>
  <div>
    <el-row :gutter="20">
      <el-col :span="6">
        <div>
          <el-statistic group-separator="," :precision="2" :value="value2" :title="title"></el-statistic>
        </div>
      </el-col>
      <el-col :span="6">
        <div>
          <el-statistic title="男女比">
            <template slot="formatter"> 456/2 </template>
          </el-statistic>
        </div>
      </el-col>
      <el-col :span="6">
        <div>
          <el-statistic group-separator="," :precision="2" decimal-separator="." :value="value1" :title="title">
            <template slot="prefix">
              <i class="el-icon-s-flag" style="color: red"></i>
            </template>
            <template slot="suffix">
              <i class="el-icon-s-flag" style="color: blue"></i>
            </template>
          </el-statistic>
        </div>
      </el-col>
      <el-col :span="6">
        <div>
          <el-statistic :value="like ? 521 : 520" title="Feedback">
            <template slot="suffix">
              <span @click="like = !like" class="like">
                <i class="el-icon-star-on" style="color:red" v-show="!!like"></i>
                <i class="el-icon-star-off" v-show="!like"></i>
              </span>
            </template>
          </el-statistic>
        </div>
      </el-col>
    </el-row>
  </div>
</template>

<script>
  export default {
    data() {
      return {
        like: true,
        value1: 4154.564,
        value2: 2222,
        title: '今年的增长',
      };
    },
  };
</script>
<style lang="scss">
  .like {
    cursor: pointer;
    font-size: 25px;
    display: inline-block;
  }
</style>
```
:::

### 倒计时

:::warning
如果需要在原基础上添加时间，请注意：整体的时间（添加的时间量和原定时间）必须是**未来**的时间节点，否则依旧是倒计时结束
:::
:::demo 通过 `value` 提供未来的时间，将开启倒计时功能
```html
<template>
  <div>
    <el-row :gutter="20">
      <el-col :span="14">
        <div style="width: 100%; display: inline-block; ">
          <el-statistic :value="deadline2" time-indices title="商品降价">
            <template slot="suffix"> 抢购即将开始 </template>
          </el-statistic>
        </div>
        <div style="width: 100%; display: inline-block; margin-top: 50px; ">
          <el-statistic @finish="hilarity" :value="deadline3" time-indices title="添加时间">
            <template slot="suffix">
              <el-button type="primary " size="small" @click="add">add 10 second</el-button>
            </template>
          </el-statistic>
        </div>
      </el-col>
      <el-col :span="10">
        <el-card shadow="hover" style="width: 100%;">
          <div slot="header" class="clearfix">
            <span>文嘉《明日歌》</span>
            <el-button style="float: right; padding: 3px 0" type="text" @click="clickFn">暂停</el-button>
          </div>
          <div style="font-size: 18px;text-align: center; ">明日复明日</div>
          <div style="font-size: 18px;text-align: center;">明日何其多</div>
          <div style="font-size: 18px;text-align: center;">我生待明日</div>
          <div style="font-size: 18px;text-align: center;">万事成蹉跎</div>
          <div style="margin-top: 40px;"></div>
          <el-statistic
            ref="statistic"
            @finish="hilarity"
            format="HH:mm:ss"
            :value="deadline4"
            title="距离明日："
            time-indices
          >
          </el-statistic>
        </el-card>
      </el-col>
    </el-row>
  </div>
</template>

<script>
  export default {
    data() {
      return {
        deadline2: Date.now() + 1000 * 60 * 60 * 8,
        deadline3: Date.now() + 1000 * 60 * 30,
        deadline4: Date.now() + (new Date().setHours(23, 59, 59) - Date.now()),
        stop: true,
      };
    },
    methods: {
      hilarity() {
        this.$notify({
          title: '提示',
          message: '时间已到，你可知寸金难买寸光阴？',
          duration: 0,
        });
      },
      clickFn() {
        this.$refs.statistic.suspend(this.stop);
        this.stop = !this.stop;
      },
      add() {
        this.deadline3 = this.deadline3 + 1000 * 10;
      },
    },
  };
</script>
```
:::

### Statistic Attributes

| 参数              | 说明             | 类型                        | 可选值 | 默认值 |
| ----------------- | ---------------- | --------------------------- | ------ | ------ |
| value             | 数值内容         | string \| number            | —      | —      |
| decimal-separator | 设置小数点       | string                      | —      | .      |
| formatter         | 自定义数值展示   | v-slot \|({value}) => VNode | —      | —      |
| group-separator   | 设置千分位标识符 | string                      | —      | ,      |
| precision         | 数值精度         | number                      | —      | 0      |
| prefix            | 设置数值的前缀   | string \| v-slot            | —      | —      |
| suffix            | 设置数值的后缀   | string \| v-slot            | —      | —      |
| title             | 数值的标题       | string \| v-slot            | —      | —      |
| value-style       | 设置数值的样式   | object                      | —      | —      |
| rate              | 设置倍率         | number                      | —      | 1000   |

### Statistic Slots

| name      | 说明       |
| --------- | ---------- |
| prefix    | 数值的前缀 |
| suffix    | 数值的后缀 |
| formatter | 数值内容   |
| title     | 数值的标题 |

### Statistic.Countdown Attributes

| 参数         | 说明               | 类型    | 可选值      | 默认值     |
| ------------ | ------------------ | ------- | ----------- | ---------- |
| time-indices | 是否开启倒计时功能 | boolean | true\|false | false      |
| value        | 必填值，输入绑定值 | string  | —           | —          |
| format       | 格式化倒计时展示   | string  | —           | 'HH:mm:ss' |

### Statistic.Countdown Events

| 事件名称 | 说明                   | 回调参数         |
| -------- | ---------------------- | ---------------- |
| change   | 在`倒计时`的功能中开启 | (value: Date)    |
| finish   | 在`倒计时` 完成后启动  | (value: boolean) |

### Statistic Methods

| 方法名  | 说明       | 参数            | 回调参数      |
| ------- | ---------- | --------------- | ------------- |
| suspend | 暂停倒计时 | (value:boolean) | (value: Date) |