Question

我已成功编译/运行其他程序但是当我尝试编译/运行下面的代码时，它告诉我：“这个项目尚未构建，你想现在构建它吗？”。

当我从函数getWinnings（）中取出int时，它将编译/运行，但是如果我添加更多参数，那么code :: blocks会给我上面的消息。造成这种情况的原因是什么？

    #include <iostream>
    #include <ctime>
    #include <cstdlib>
    #include <string>

    int gameCoins;

    using namespace std;

    void instructions();
    void playSlots();
    void spin();

    int main()
    {
    srand(time(NULL));
    instructions();
    playSlots();
    }

    void instructions()
    {
    cout << "\t\t" << "VIRTUAL SLOT MACHINE" << "\n\n";
    cout << "INSTRUCTIONS: " << endl << "You start with 500 coins. The game is over either when you run out of coins or you quit the game." << "\n";
    cout << "It will cost you 25 coins per spin. Good luck!" << "\n\n" ;
    }
    void playSlots()
    {
    string user_input;
    string replay_or_quit;

    while (replay_or_quit != "n" && replay_or_quit != "no")
    {
    gameCoins = 500;
    cout << "Coins: " << gameCoins << "\n";
    while (user_input != "spin" && user_input != "Spin")
    {
        cout << "Spin the wheels to start playing. Type 'spin' to begin" << "\n";
        cin >> user_input; cout << "\n\n";
    }
    spin();
    while (gameCoins > 0 && user_input != "no" && user_input != "n")
    {
        cout << "Spin again?" << "\n" << "Decision: ";
        cin >> user_input;
        if (user_input == "y" || user_input == "yes")
        spin();
    }
    if (gameCoins == 0)
    {
        cout << "You went broke. Play again?" << "\n" << "Decision: ";
        cin >> replay_or_quit;
    }
    else
    {
        cout << "Congratulations, you won " << gameCoins << " coins. Play again?" << "\n" << "Decision: ";
        cin >> replay_or_quit;
    }
}
}

    int getWinnings(int a, int b)
    {
    return (a+b);
    }
    void spin()
    {
int wheelOne_Top, wheelOne_Mid, wheelOne_Bot;
int wheelTwo_Top, wheelTwo_Mid, wheelTwo_Bot;
int wheelThree_Top, wheelThree_Mid, wheelThree_Bot;
int coinsWon;

gameCoins = gameCoins-25;
wheelOne_Top = (rand() % 3) + 1, wheelTwo_Top = (rand() % 3) + 1, wheelThree_Top = (rand() % 3) + 1;
wheelOne_Mid = (rand() % 3) + 1, wheelTwo_Mid = (rand() % 3) + 1, wheelThree_Mid = (rand() % 3) + 1;
wheelOne_Bot = (rand() % 3) + 1, wheelTwo_Bot = (rand() % 3) + 1, wheelThree_Bot = (rand() % 3) + 1;

while (wheelOne_Top == wheelOne_Mid || wheelOne_Top == wheelOne_Bot || wheelOne_Bot == wheelOne_Mid)
{
    wheelOne_Mid = (rand() % 3) + 1;
    wheelOne_Bot = (rand() % 3) + 1;
}
while (wheelTwo_Top == wheelTwo_Mid || wheelTwo_Top == wheelTwo_Bot || wheelTwo_Bot == wheelTwo_Mid)
{
    wheelTwo_Mid = (rand() % 3) + 1;
    wheelTwo_Bot = (rand() % 3) + 1;
}
while (wheelThree_Top == wheelThree_Mid || wheelThree_Top == wheelThree_Bot || wheelThree_Bot == wheelThree_Mid)
{
    wheelThree_Mid = (rand() % 3) + 1;
    wheelThree_Bot = (rand() % 3) + 1;
}

cout << "Coins: " << gameCoins << endl << endl;
cout << "\t\t\t" << wheelOne_Top << " " << wheelTwo_Top << " " << wheelThree_Top << "\n";
cout << "\t\t\t" << wheelOne_Mid << " " << wheelTwo_Mid << " " << wheelThree_Mid << "\n";
cout << "\t\t\t" << wheelOne_Bot << " " << wheelTwo_Bot << " " << wheelThree_Bot << "\n\n";

coinsWon = getWinnings(wheelOne_Top, wheelOne_Mid);
gameCoins = coinsWon + gameCoins;

if (gameCoins > 0)
    cout << "You won " << gameCoins << " coins!" << "\n" << "Total Coins: " << gameCoins << "\n\n";
else
    cout << "You lost 25 coins!" << "\n" << "Total coins: " << gameCoins << "\n\n";
}

Answer 1

确保程序的最后一个实例仍未运行。如果你看到它，请检查你的任务管理器并强制关闭Slot Machine.exe。

Answer 2

可能是编译器表现得很有趣，或者它可能与环境有关。

编译器：

如果它只是编译器的一些奇怪的故障导致它崩溃（这可能会使Code :: Blocks无法打开可执行文件并让它给你那个消息），那么我建议改变...

int getWinnings (int a,int b)
{
    return a + b;
};

...到#define getWinnings(a,b) (a + b)

环境：

[我假设你正在使用Windows。]

我有时会在两种情况下收到通知。

首先是我不小心碰到了Build＆amp;在我正在修复的头文件上运行，而不是在我使用测试头的实际程序上运行。在这种情况下，如果您为源文件提供了错误的扩展名，只需关闭它，将扩展名更改为“.c”或“.cpp”而不是“.h”，然后重新打开它。

第二个是Code :: Blocks在编译器在写入文件后关闭文件之后，在Windows打开它之前查找可执行文件。在这种情况下，在构建它之后，如果它给你消息，只需点击“否”然后点击运行按钮（不是Build＆amp; Run按钮）。

如果这些都不是问题，则可能是文件访问存在问题，例如您不在管理员级别帐户上，或者Code :: Blocks未被授予管理员级别权限。尝试设置Code :: Blocks以管理员级权限打开（在Windows 7上，这意味着每次打开时都必须单击弹出窗口以允许它），或者如果你不能这样做那么也许更改您正在编译的目录。

CodeBlocks中的问题编译程序

2 个答案: