Question

我实际上是想用c ++创建一个虚张声势的卡片游戏。当我打电话给showAllCards函数时，牌组中的牌（Ace of Hearts）没有显示在输出上，显示它的唯一方法是在主体中添加两个牌组结构。当程序运行时（没有顶牌）， dev也会产生一些警告。我究竟做错了什么？您也可以参考一下程序中的一些改进/更改。这是代码：

#include <iostream>
#include<Strings.h>
#include<cstdlib>

using namespace std;

struct link{
    int data;
    link *link;
};

struct deck
    {
        string suit[32];
        string value[32];
    }card;

struct cardsDeck{
    string nxt[20];
    string suitlist[4] = {"hearts","spades","clubs","diamonds"};
    string vals[8] = {"ace","two","three","four","five","jack","queen","king"};

}cdeck;

class Game
{
    private: 
    link *first;
    public:
        Game();
        void check();
        void mask();
        void pass();
        void enterCard();
        void showAllCards();
        void shuffle(); 
        void rearrangeCards();  
};

Game::Game(){
    first=NULL;
}

void Game::rearrangeCards(){
    short int x = 0, y = 0, z = 0;
    while(x < 32)
    {
        card.suit[x] = cdeck.suitlist[y];
        card.value[x] = cdeck.vals[z];
        ++x;
        ++z;
        if(x % 8 == 0)
        {
            ++y;    
        }
        if(z % 8 == 0)
        {
            z = 0;
        }
    }

}

void Game::showAllCards(){
    int x;
    while(x < 32)
    {

        if(card.suit[x]!=card.suit[x-1]){
            cout<<"\n";
        }
        cout << card.value[x] << " of " << card.suit[x] << "\n";
        ++x;
    }
}

int main(){
    Game game;
    int op;
    game.rearrangeCards();
    cout<<"Welcome to Bluff Mashter 20/12/15::6:46\nEnter the Operation please:\n\n";
    cin>>op;
    while(op!=0){
        switch(op){
            case 1:
                game.showAllCards();
                break;
            case 2:
                break;
            case 3:
                break;
            case 4:
                break;
            case 5:
                break;
            case 6:
                break;
            case 7:
                break;
            case 8:
                break;

        }
    }

    return 1;   
}

以下是警告

20  63  E:\Projjects\mainbluuf.cpp  [Warning] non-static data member initializers only available with -std=c++11 or -std=gnu++11
21  78  E:\Projjects\mainbluuf.cpp  [Warning] non-static data member initializers only available with -std=c++11 or -std=gnu++11
20  63  E:\Projjects\mainbluuf.cpp  [Warning] extended initializer lists only available with -std=c++11 or -std=gnu++11
21  78  E:\Projjects\mainbluuf.cpp  [Warning] extended initializer lists only available with -std=c++11 or -std=gnu++11

Answer 1

假设您的方法是这样的：

Error: No compatible version found: cordova-android@'>=2.3.0 <2.4.0'
Valid install targets:
["3.5.0","3.5.1","3.6.0","3.6.1","3.6.3","3.6.4","3.7.0","3.7.1","4.0.0","4.0.1","3.7.2","4.0.2","4.1.0","4.1.1","5.0.0"]

在您的第一次迭代中，您正在执行此操作：void Game::showAllCards(){ int x = 0; while(x < 32) { if(card.suit[x]!=card.suit[x-1]){ cout<<"\n"; } cout << card.value[x] << " of " << card.suit[x] << "\n"; ++x; } }这是错误的。

card.suit[0]!=card.suit[-1]

虽然我没有测试代码，但我想这可以解决问题。

注意：我将void Game::showAllCards(){ int x = 1; while(x < 32) { if(card.suit[x]!=card.suit[x-1]){ cout<<"\n"; } cout << card.value[x] << " of " << card.suit[x] << "\n"; ++x; } }设置为x，这是唯一的变化。由于您是C ++的新手，默认情况下1变量可以包含存储在该内存地址中的任何不可预测的值，因此良好的做法是始终初始化你的变量。

<强>更新：

试试这个：

uninitialized

更新2 ：

void Game::showAllCards(){
    for(x = 0; x < 32; ++x)
    {
        cout << card.value[x] << " of " << card.suit[x] << "\n";
    }
}

更新3：

int main(){
    Game game;
    int op;
    game.rearrangeCards();
    cout<<"Welcome to Bluff Mashter 20/12/15::6:46\nEnter the Operation please:\n\n";

    cin >> op;
    while(op!=0){
        switch(op){
            case 1:
                game.showAllCards();
                break;
            case 2:
                break;
            case 3:
                break;
            case 4:
                break;
            case 5:
                break;
            case 6:
                break;
            case 7:
                break;
            case 8:
                break;

        }

        cin >> op;
    }

    return 0;   
}

c ++：Deck没有显示第一张牌

1 个答案: