So setzen Sie das Kontrollkästchen in Laui

data":[
    {"name":"北京市","areaType":"省/直辖市","id":"110000","LAY_CHECKED":true},
    {"name":"市辖区","areaType":"地市","id":"110100","LAY_CHECKED":true},
    {"name":"县","areaType":"地市","id":"110200","LAY_CHECKED":false}
]

data":[
    {"name":"北京市","areaType":"省/直辖市","id":"110000","checked":true},
    {"name":"市辖区","areaType":"地市","id":"110100","checked":true},
    {"name":"县","areaType":"地市","id":"110200","checked":false}
]

layui.use('table', function(){    
    var $ = layui.$;    
    var table = layui.table;    
   //在使用table之前加上下面这句就可以了
   table =  $.extend(table, {config: {checkName: 'checked'}});
   table.render({
       ...
   });
});