解决layui动态加载复选框无法选中的问题

 <!--原有layui复选框-->
<td>
  <div class="layui-unselect layui-form-checkbox" lay-skin="primary" data-id='2'><i class="layui-icon">&#xe605;</i></div>
</td>
<!--替换为自己写的-->
<td>
  <div a="off" class="checkBox" v-bind:data-id='x.Id' v-on:click="checkBox(i)">
    <div></div>
  </div>
</td>

//单个的选中取消 

checkBox:function(n){
  var checkbox = $('tbody tr').eq(n).find('.checkBox');
  if (checkbox.attr("a") == "off") {
    checkbox.children("div").css({
      "display" : "block"
    });
    checkbox.attr("a","on");
  }else {
    checkbox.children("div").css({
      "display" : "none"
    });
    checkbox.attr("a","off");
  }
}

//全选取消

checkBoxAll:function(){
  var obj = $('thead').find('.checkBox');
  if ($(obj).attr("a") == "off") {
    $('.checkBox div').css({"display" : "block"});
    $('.checkBox').attr("a","on");
  }else {
    $('.checkBox div').css({"display" : "none"});
    $('.checkBox').attr("a","off");
  }
}

function getId() {
  var obj = $("tbody .checkBox");
  var arr='';
  obj.each(function(index, el) {
    if(obj.eq(index).attr("a") == "on"){
      arr += obj.eq(index).attr('data-id')+ ','
    }
  });
  return arr;
}