常用方法
常用方法
常用方法
常用方法
public bool DeleteOrderedDish(int dishnumber, string numorder)//delete an ordered dish { return(dal.DeleteOrderedDish(dishnumber, numorder)); }
public bool DeleteOrderedDish(int dishnumber, string numorder)//delete an ordered dish { return(dal.DeleteOrderedDish(dishnumber, numorder)); }