answer-mini/wechat-app/static/vant/stepper/index.wxml

<wxs src="../wxs/utils.wxs" module="utils" />

<view class="van-stepper custom-class">
  <view
    wx:if="{{ showMinus }}"
    data-type="minus"
    style="width: {{ utils.addUnit(buttonSize) }}; height: {{ utils.addUnit(buttonSize) }}"
    class="minus-class {{ utils.bem('stepper__minus', { disabled: disabled || disableMinus || currentValue <= min }) }}"
    hover-class="van-stepper__minus--hover"
    hover-stay-time="70"
    bind:tap="onTap"
    bind:touchstart="onTouchStart"
    bind:touchend="onTouchEnd"
  />
  <input
    type="{{ integer ? 'number' : 'digit' }}"
    class="input-class {{ utils.bem('stepper__input', { disabled: disabled || disableInput }) }}"
    style="width: {{ utils.addUnit(inputWidth) }}; height: {{ utils.addUnit(buttonSize) }}"
    value="{{ currentValue }}"
    focus="{{ focus }}"
    disabled="{{ disabled || disableInput }}"
    bindinput="onInput"
    bind:focus="onFocus"
    bind:blur="onBlur"
  />
  <view
    wx:if="{{ showPlus }}"
    data-type="plus"
    style="width: {{ utils.addUnit(buttonSize) }}; height: {{ utils.addUnit(buttonSize) }}"
    class="plus-class {{ utils.bem('stepper__plus', { disabled: disabled || disablePlus || currentValue >= max }) }}"
    hover-class="van-stepper__plus--hover"
    hover-stay-time="70"
    bind:tap="onTap"
    bind:touchstart="onTouchStart"
    bind:touchend="onTouchEnd"
  />
</view>