element-UI输入框时间默认今天

<el-date-picker
    v-model="dataPicker"
    align="right"
    type="date"
    placeholder="选择日期"
    size="small"
/>

<!-- script -->
data () {
    return : {
        // ...
        dataPicker：new Date
    }
}
时间转换

```javascript

    date(date) {
      date = new Date(date);
      var y = date.getFullYear();
      var m = date.getMonth() + 1;
      var d = date.getDate();

      m = m < 10 ? "0" + m : m;
      d = d < 10 ? "0" + d : d;
      return y + "-" + m + "-" + d;
    },