Question

我已经看到这个问题已被提出但不完全是从这种方法。我查看了其他线程，并没有看到我必须采取的方法的解决方案。请提前原谅我这篇冗长的帖子。我必须从OOP角度解决这个问题，我正在尝试使用数组来保存用户输入的磁盘数量。我没有看到另一种做法。

            **This is my .h file for the class Tower.**
            #include <iostream>
            #include <string>
            #include "Location.h"

            using namespace std;
            //Class for the tower
            class Tower
            {
            private:
                Location _location; 

                public:
                    //Constructor to build object
                    Tower(Location location);
                    //set get functions to set and get values.
                    void setLocation (Location newLocation);
                    Location getLocation()const;  

                };

        **This is my location.h file i used an enum datatype to specify the location of each peg.**

            enum Location
            {
                start,
                middle,
                last
            };
        **My disk.h file that has the properties of my disks.**
        using namespace std;

        class Disk
        {
        private:
            int _diskLocation;
            int _diskSize;

        public:
            Disk(Tower tow1, int sizeOfDisk);
            void setdiskSize(int);
            int getdiskSize()const;
            void setdiskLocation(Tower newTower);
            Tower getdiskLocation()const;

        };
    **This is my implementation file where I initialized the constructor and its data members.**
    using namespace std;

    Tower::Tower(Location location)
    {
        setLocation(location);
    }

    Disk::Disk(Tower tow1, int sizeOfDisk)
    {
        setdiskSize(sizeOfDisk);
        setdiskLocation(tow1);
    }

Finally the main.cpp file. here i  make the objects to be used but when i try to pass in the number of disks entered by the user into the array i get the following error. **"Array initializer must be an initializer list"**
int main(int argc, const char * argv[])
{

    Tower tower1(start);
    Tower tower2(middle);
    Tower tower3(last);


    int numberOfDisks =0;

    cout << "Enter number of disks: " << endl;
    cin >> numberOfDisks;


     Disk disks[] = new Disk [numberOfDisks]   
    return 0;
}

我开始认为使用这种方法无法解决问题。我在互联网上发现的这个问题的每个解决方案都是在程序上完成的。除了一些其他语言和编程概念，我还没有被教过。这是我参加过的第二个编程课程。谢谢你的帮助。

Answer 1

Disk disks[]和Disk* disks之间存在差异。您可以执行Disk* disks = new Disk[numberOfDisks];（请注意您的示例中缺少的;），但您无法执行Disk disks[] = new Disk[numberOfDisks];。请参阅this post以了解原因。

在C ++中使用面向对象概念的河内塔

1 个答案: