layui怎么设置checkbox勾选

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}]