/// <summary>
/// 指定被代理者
/// </summary>
/// <param name="realSub">被代理的实体</param>
internal void setRealSubject(DB_GOODS realSub)
{
realSubject = realSub;
}
/// <summary>
/// 构造代理者
/// </summary>
/// <param name="realSub">被代理的实体（被代理的是商品、仓库还是货架）</param>
/// <param name="dataGridView">数据表控件</param>
public Proxy(DB_GOODS realSub, DataGridView dataGridView)
{
realSubject = realSub;
this.dataGridView = dataGridView;
}