"usingComponents": {
  "van-checkbox": "@vant/weapp/checkbox/index",
  "van-checkbox-group": "@vant/weapp/checkbox-group/index"
}

<van-checkbox value="{{ checked }}" bind:change="onChange">复选框</van-checkbox>

Page({
  data: {
    checked: true,
  },

  onChange(event) {
    this.setData({
      checked: event.detail,
    });
  },
});

<van-checkbox disabled value="{{ checked }}" bind:change="onChange">
  复选框
</van-checkbox>

<van-checkbox value="{{ checked }}" shape="square" bind:change="onChange">
  复选框
</van-checkbox>

<van-checkbox
  value="{{ checked }}"
  checked-color="#07c160"
  bind:change="onChange"
>
  复选框
</van-checkbox>

<van-checkbox value="{{ checked }}" icon-size="25px">复选框</van-checkbox>

<van-checkbox use-icon-slot value="{{ checked }}" bind:change="onChange">
  自定义图标
  <image slot="icon" src="{{ checked ? activeIcon : inactiveIcon }}" />
</van-checkbox>

Page({
  data: {
    checked: true,
    activeIcon: '//img.yzcdn.cn/icon-active.png',
    inactiveIcon: '//img.yzcdn.cn/icon-normal.png',
  },

  onChange(event) {
    this.setData({
      checked: event.detail,
    });
  },
});

<van-checkbox value="{{ checked }}" label-disabled>复选框</van-checkbox>

<van-checkbox-group value="{{ result }}" bind:change="onChange">
  <van-checkbox name="a">复选框 a</van-checkbox>
  <van-checkbox name="b">复选框 b</van-checkbox>
  <van-checkbox name="c">复选框 c</van-checkbox>
</van-checkbox-group>

Page({
  data: {
    result: ['a', 'b'],
  },

  onChange(event) {
    this.setData({
      result: event.detail,
    });
  },
});

<van-checkbox-group value="{{ result }}" bind:change="onChange" max="{{ 2 }}">
  <van-checkbox name="a">复选框 a</van-checkbox>
  <van-checkbox name="b">复选框 b</van-checkbox>
  <van-checkbox name="c">复选框 c</van-checkbox>
</van-checkbox-group>

<van-checkbox-group value="{{ result }}" bind:change="onChange">
  <van-cell-group>
    <van-cell
      wx:for="{{ list }}"
      wx:key="index"
      title="复选框 {{ item }}"
      value-class="value-class"
      clickable
      data-index="{{ index }}"
      bind:click="toggle"
    >
      <van-checkbox
        catch:tap="noop"
        class="checkboxes-{{ index }}"
        name="{{ item }}"
      />
    </van-cell>
  </van-cell-group>
</van-checkbox-group>

Page({
  data: {
    list: ['a', 'b', 'c'],
    result: ['a', 'b'],
  },

  onChange(event) {
    this.setData({
      result: event.detail,
    });
  },

  toggle(event) {
    const { index } = event.currentTarget.dataset;
    const checkbox = this.selectComponent(`.checkboxes-${index}`);
    checkbox.toggle();
  },

  noop() {},
});

.value-class {
  flex: none !important;
}