Question

数据库ACCESS的建立前台数据提交后台数据接收并存入数据库，查询数据

帮忙大神给我举个列子，借鉴一下，十分感谢！

Answer 1

Form formPreview = new Form();
public Leaf(string name) : base(name) { }
public override void Add(Component c)
{
Console.WriteLine("Cannot add to a leaf");
}
public override void Remove(Component c)
{
Console.WriteLine("Cannot remove to a leaf");
}
public override void Display(int depth)
{
Console.WriteLine(new string('-',depth)+name);
}
}