<template name="toolbar"><view wx:if="{{ showToolbar }}" class="van-picker__toolbar van-hairline--top-bottom toolbar-class"><view class="van-picker__cancel" hover-class="van-picker__cancel--hover" hover-stay-time="70" data-type="cancel" bindtap="emit">{{cancelButtonText}}</view><view wx:if="{{ title }}" class="van-picker__title van-ellipsis">{{title}}</view><view class="van-picker__confirm" hover-class="van-picker__confirm--hover" hover-stay-time="70" data-type="confirm" bindtap="emit">{{confirmButtonText}}</view></view></template><view class="van-picker custom-class"><template is="toolbar" wx:if="{{ toolbarPosition === 'top' }}" data="{{ showToolbar, cancelButtonText, title, confirmButtonText }}"></template><view wx:if="{{ loading }}" class="van-picker__loading"><loading color="#1989fa"/></view><view class="van-picker__columns" style="height: {{ itemHeight * visibleItemCount }}px" catch:touchmove="noop"><picker-column class="van-picker__column" wx:for="{{ isSimple(columns) ? [columns] : columns }}" wx:key="index" data-index="{{ index }}" custom-class="column-class" value-key="{{ valueKey }}" initial-options="{{ isSimple(columns) ? item : item.values }}" default-index="{{ item.defaultIndex || defaultIndex }}" item-height="{{ itemHeight }}" visible-item-count="{{ visibleItemCount }}" active-class="active-class" bind:change="onChange" /><view class="van-picker__frame van-hairline--top-bottom" style="height: {{ itemHeight }}px" /></view><template is="toolbar" wx:if="{{ toolbarPosition === 'bottom' }}" data="{{ showToolbar, cancelButtonText, title, confirmButtonText }}"></template></view><wxs module="isSimple">function isSimple(columns){return columns.length &&!columns[0].values}module.exports = isSimple;</wxs>