shenweishi/node_modules/@vant/weapp/lib/radio/index.wxml

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

<view class="{{ utils.bem('radio', [direction]) }} custom-class">
  <view
    wx:if="{{ labelPosition === 'left' }}"
    class="{{ utils.bem('radio__label', [labelPosition, { disabled: disabled || parentDisabled }]) }} label-class"
    bindtap="onClickLabel"
  >
    <slot />
  </view>
  <view class="van-radio__icon-wrap" style="font-size: {{ utils.addUnit(iconSize) }}" bindtap="onChange">
    <slot wx:if="{{ useIconSlot }}" name="icon" />
    <van-icon
      wx:else
      name="success"
      class="{{ utils.bem('radio__icon', [shape, { disabled: disabled || parentDisabled, checked: value === name }]) }}"
      style="{{ computed.iconStyle({ iconSize, checkedColor, disabled, parentDisabled, value, name }) }}"
      custom-class="icon-class"
      custom-style="{{ computed.iconCustomStyle({ iconSize }) }}"
    />
  </view>
  <view
    wx:if="{{ labelPosition === 'right' }}"
    class="label-class {{ utils.bem('radio__label', [labelPosition, { disabled: disabled || parentDisabled }]) }}"
    bindtap="onClickLabel"
  >
    <slot />
  </view>
</view>