vant-weapp/example/pages/checkbox/index.js

import Page from '../../common/page';

Page({
  data: {
    checkbox1: true,
    checkbox2: true,
    checkbox3: true,
    list: ['a', 'b', 'c'],
    result: ['a', 'b'],
    result2: [],
    result3: [],
    icon: {
      normal:
        'https://img.yzcdn.cn/public_files/2017/10/13/c547715be149dd3faa817e4a948b40c4.png',
      active:
        'https://img.yzcdn.cn/public_files/2017/10/13/793c77793db8641c4c325b7f25bf130d.png'
    }
  },

  onChange(event) {
    const { key } = event.currentTarget.dataset;
    this.setData({ [key]: event.detail });
  },

  onClick(event) {
    const { value } = event.currentTarget.dataset;
    this.setData({
      radio3: value
    });
  },

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

  noop() {}
});