public function loginCheck($data=null){
$result = model('admin')->where(function ($query) use ($data) {
$query->where('phone',$data['login_name'])->where('passwd',$data['passwd']);
})->whereOr(function ($query) use ($data) {
$query->where('login_name',$data['login_name'])->where('passwd',$data['passwd']);
})->select();
return $result;
}