data: {
    checkBoxItems: [
      { name: '全天(1-8节)',value: 'allday' },{ name: '上午(1-4节)',value: 'am''晚上(晚自习)',value: 'night'功能
 
四个复选框中只能选一个，且选中另一个会取消其余选中,且能保存选择的value值
JS代码实现

checkBoxChange: function (e) {
    var that = this;
    let checkBoxValues=null;
    let checkBoxItems = this.data.checkBoxItems,values = e.detail.value
    for (var i = 0,lenI = checkBoxItems.length; i < lenI; ++i) {
      if(checkBoxItems[i].value==values[values.length-1]){
        checkBoxItems[i].checked=true;
        checkBoxValues = checkBoxItems[i].value;
      }
      else{
        checkBoxItems[i].checked = false;
      }
    }
    console.log(checkBoxValues)
    that.setData({ checkBoxItems,checkBoxValues })
  }

 
 
前端代码
 

<view class="weui-cells weui-cells_after-title">
      checkBox-group ="weui-flex" bindchange="checkBoxChange">
        label ="weui-cell weui-check__label weui-flex__item" wx:for="{{checkBoxItems}}" wx:key="value">
          checkBox ="weui-check" value="{{item.value}}" checked="{{item.checked}}" />
          ="weui-cell__hd weui-check__hd_in-checkBox">
            icon ="weui-icon-checkBox_circle" type="circle" size="23" wx:if="{{!item.checked}}"></icon="weui-icon-checkBox_success"="success"="{{item.checked}}"</view="weui-cell__bd">{{item.name}}labelcheckBox-group>
    >

 
 
 
对应的CSS样式是
WeUI