gorm 使用sql方法

var users []User
    //   查询 执行用Scan 和Find 一样
    db=db.Raw("select uid,user_name,age from Users").Scan(&users)
    //db=db.Raw("select uid,user_name,age from Users").Find(&users)
    fmt.Println("Users",users)
    //  更新和删除.插入用 Exec
    db= db.Exec("update Users set user_name='def' where uid=?",1)
    fmt.Println("更新了",db.RowsAffected,"条数据")
    db= db.Exec("delete from Users where uid=?",2)
    fmt.Println("更新了",db.RowsAffected,"条数据")
    return  int32(Mycount.Usercount)