解决uniapp的checkBox取消选中

		 
                :checked="checkUnType.includes(String(item.typeId))">
				 {{item.name}}
		

data(){

    return{
        universityList:[
            {typeId:'',name:'不限' },
            {typeId:'12',name:'哈呵呵'},
            {typeId:'13',name:'哈嘿嘿'},
            {typeId:'14',name:'哈呼呼'},
            {typeId:'15',name:'哈拉拉'}
        ],
        checkUnType:[]
    }
},

methods:{
     //我的需求是点击当前多选框中的不限，其他选框取消选中，点击其他选框不限选框取消选择
    selectUniverSity(val){
				let zhi=false;
                //(2)但是选择非不限内容时需首先判断之前checkUnType的值是否数组长度为1且为空 
				if(this.checkUnType.length===1&&this.checkUnType.includes('')){
					zhi=true;
				}
				this.checkUnType=[]; 
				this.checkUnType=val.detail.value;
                //（3）如果是则设置一个参数为true,将多选框中为空的一项删掉
				if(zhi){
					this.checkUnType.splice(0,1);
				}else if(val.detail.value.includes('')){
                    //（1）首先判断如果所选的checkUnType包含''这一项则设置只包含'',去掉其它
                  
					this.checkUnType=[''];
				}
                //（4）最后接收获取的值赋给条件
                if(this.checkUnType.length>0&&this.checkUnType[0]!==''){
					this.universityList=this.checkUnType;
				}
				
			},


}