"Daike"=>array('id'=>'daikeid','leaveid','rkbid','leavesj','username'=>'daike_name'),
"Rkb"=>array('xq','nj','bj','ks','ls','kc','_on'=>'Rkb.id=Daike.rkbid'),
"Leave"=>array('username'=>'leave_name','sta','spsj','_as'=>'Leave_ask','_on'=>'Leave_ask.code=Daike.leaveid'),
"Setkc"=>array('kcmc','_on'=>'Setkc.kcdm=Rkb.kc'),
"Setbj"=>array('bjmc','_on'=>'Setbj.bjdm=Rkb.nj'),
"User"=>array('name'=>'daike_name_cn','_as'=>'yh','_on'=>'yh.username=Daike.daike_name'),
"User"=>array('name'=>'leave_name_cn','_as'=>'yh1','_on'=>'yh1.username=Leave_ask.leave_name'),
"User"=>array('name'=>'rkb_name_cn','_as'=>'yh2','_on'=>'yh2.username=Rkb.ls'),

后面三个user表，为什么只有最后一个显示，上面两个不显示？