wxmini/dist/datetime-picker/index.wxml

<van-picker
  class="van-datetime-picker"
  title="{{ title }}"
  columns="{{ columns }}"
  item-height="{{ itemHeight }}"
  show-toolbar="{{ showToolbar }}"
  visible-item-count="{{ visibleItemCount }}"
  confirm-button-text="{{ confirmButtonText }}"
  cancel-button-text="{{ cancelButtonText }}"
  bind:change="onChange"
  bind:confirm="onConfirm"
  bind:cancel="onCancel"
/>