artEA's questions

有没有办法使用openGL方法显示文本？TextOut 的选项适合我，但它不能与对象的坐标一起移动，还有其他选项吗？（没有额外的库）

#include <GLFW/glfw3.h>
#include <Windows.h>
#include <iostream>
#include <string>
using namespace std;
void Button(string text,double size, float posX, float posY);
GLuint LoadTexture(const char* filename);
GLuint textureid;

int main()
{
    GLFWwindow* window;
    std::cout << "Started";
    /* Initialize the library */
    if (!glfwInit())
        return -1;

    /* Create a windowed mode window and its OpenGL context */
    window = glfwCreateWindow(500, 500, "Hello World", NULL, NULL);
    if (!window)
    {
        glfwTerminate();
        return -1;
    }

    /* Make the window's context current */
    glfwMakeContextCurrent(window);
    LoadTexture("test.bmp");

    /* Loop until the user closes the window */
    while (!glfwWindowShouldClose(window))
    {
        /* Render here */
        glClear(GL_COLOR_BUFFER_BIT);
        Button("Test",0, 0.2, 0.2);

        /* Swap front and back buffers */
        glfwSwapBuffers(window);

        /* Poll for and process events */
        glfwPollEvents();
    }
    glfwTerminate();
    return 0;
}
GLuint LoadTexture(const char* filename)
{
    GLuint texture;
    int width, height;
    unsigned char* data;

    FILE* file;
#pragma warning(disable : 4996)
    file = fopen(filename, "rb");

    if (file == NULL) return 0;
    width = 1024;
    height = 512;
    data = (unsigned char*)malloc(width * height * 3);
    //int size = fseek(file,);
    fread(data, width * height * 3, 1, file);
    fclose(file);

    for (int i = 0; i < width * height; ++i)
    {
        int index = i * 3;
        unsigned char B, R;
        B = data[index];
        R = data[index + 2];

        data[index] = R;
        data[index + 2] = B;
    }

    glGenTextures(1, &texture);
    glBindTexture(GL_TEXTURE_2D, texture);
    glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST);

    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width, height, 0, GL_RGB, GL_UNSIGNED_BYTE, data);
    free(data);
    textureid = texture;
}

void Button(string text,double size, float posX, float posY) {
    glEnable(GL_TEXTURE_2D);
    glBindTexture(GL_TEXTURE_2D, textureid);
    glPushMatrix();
    glTranslatef(-1 + posX, -1 + posY, -1);
    glScalef(0.2, 0.2, 0);
    glBegin(GL_TRIANGLE_FAN);
    glVertex2f(0, 0);
    glVertex2f(1 + size, 0);
    glVertex2f(1 + size, 0.5 + size);
    glVertex2f(0, 0.5 + size);
    glEnd();
    glPopMatrix();
    glBindTexture(GL_TEXTURE_2D, 0);
}

问题是返回值，问题是 string& operator[] （const string index）和 bool& operator[] （const string index），它不允许我从 string 中获取值（返回 1）但是当我交换字符串时（ bool& 到 string& 以及它们的内容）然后一切都反过来并返回空虚，如何解决？我的代码：

#include <iostream>
#include <string>
#include <map>

using namespace std;

class StringData
{
private:
    map<string, string> dataStrings;
    map<string, bool> dataBools;
public:
    string& operator[] (const string index)
    {
        return dataStrings[index];
    }
    bool& operator[] (const string index)
    {
        return dataBools[index];
    }
};

int main() 
{
    StringData a;
    a["test"] = false;
    a["test2"] = "Hello";
    cout << a["test"];
    cout << a["test2"];
    system("Pause");
}

我找到了用于解压存档的库，但无法正常连接它们）有没有办法使用 C++ 中的标准方法解压存档？

我得到回应了吗？对于必要字符的位置，我尝试了一切，我尝试在 C++ 控制台中制作伪图形。这是代码：

    printf("╔════════════╗");
    printf("║            ║");
    printf("║            ║");
    printf("╚════════════╝");

作为回应，我得到：

??????????????
?            ?
?            ?
??????????????

问题是这些字符的位置是什么，问号，它可能是什么？我搜索了论坛，没有任何帮助...

只是为了展示，我想问一下磁盘上的第三个扇区是什么（维多利亚程序）以及应该存储什么，我被题词“artitio n”弄糊涂了。现在我不仅想到它是什么）而且还查看了磁盘的第二个扇区，其中有类似的内容。

主要问题是为什么？

带有最新更新的 VS Studio 版本 2019。尝试通过市场与工作室安装没有成功，也作为一个包安装。

查看安装日志

05.03.2021 17:17:43 - Ошибка установки: System.AggregateException: Произошла одна или несколько ошибок. ---> Microsoft.VisualStudio.Setup.PackageFailureException: Package 'Microsoft.Ancm.IISExpress.Msi' failed to install
   в Microsoft.VisualStudio.Setup.InstallOperation.Run(CancellationToken token)
   в Microsoft.VisualStudio.Setup.Engine.RunOperation(InstallOperation installOperation, CancellationToken token, ExecuteAction action, ITelemetryOperation telemetryOperation)
   в Microsoft.VisualStudio.Setup.Engine.RunCoreOperation(InstallOperation coreOperation, ExecuteAction action, ITelemetryOperation telemetryOperation, CancellationToken token)
   в Microsoft.VisualStudio.Setup.Engine.Install(Product product, String destination, CancellationToken token)
   в Microsoft.VisualStudio.ExtensionManager.SetupEngineService.<Install>b__14_0()
   в System.Threading.Tasks.Task`1.InnerInvoke()
   в System.Threading.Tasks.Task.Execute()
   --- Конец трассировки внутреннего стека исключений ---
   в System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
   в System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
   в Microsoft.VisualStudio.ExtensionManager.SetupEngineService.Install()
   в Microsoft.VisualStudio.ExtensionManager.ExtensionEngineImpl.PerformSetupEngineInstall(InstallableExtensionImpl extension, Boolean installPerMachine, Boolean isPackComponent, IDictionary`2 extensionsInstalledSoFar, List`1 extensionsUninstalledSoFar, IInstalledExtensionList modifiedInstalledExtensionsList, IProgress`1 progress, InstallFlags installFlags, AsyncOperation asyncOp, Version targetedVsVersion, IInstalledExtension& newExtension)
   в Microsoft.VisualStudio.ExtensionManager.ExtensionEngineImpl.InstallInternal(InstallableExtensionImpl extension, InstallFlags installFlags, IDictionary`2 extensionsInstalledSoFar, List`1 extensionsUninstalledSoFar, IInstalledExtensionList modifiedInstalledExtensionsList, AsyncOperation asyncOp, IProgress`1 progress, Version targetedVsVersion)
   в Microsoft.VisualStudio.ExtensionManager.ExtensionEngineImpl.BeginInstall(IInstallableExtension installableExtension, InstallFlags installFlags, AsyncOperation asyncOp, Version targetedVsVersion)
   в Microsoft.VisualStudio.ExtensionManager.ExtensionEngineImpl.InstallWorker(IInstallableExtension extension, InstallFlags installFlags, AsyncOperation asyncOp)
---> (Внутреннее исключение #0) Microsoft.VisualStudio.Setup.PackageFailureException: Package 'Microsoft.Ancm.IISExpress.Msi' failed to install
   в Microsoft.VisualStudio.Setup.InstallOperation.Run(CancellationToken token)
   в Microsoft.VisualStudio.Setup.Engine.RunOperation(InstallOperation installOperation, CancellationToken token, ExecuteAction action, ITelemetryOperation telemetryOperation)
   в Microsoft.VisualStudio.Setup.Engine.RunCoreOperation(InstallOperation coreOperation, ExecuteAction action, ITelemetryOperation telemetryOperation, CancellationToken token)
   в Microsoft.VisualStudio.Setup.Engine.Install(Product product, String destination, CancellationToken token)
   в Microsoft.VisualStudio.ExtensionManager.SetupEngineService.<Install>b__14_0()
   в System.Threading.Tasks.Task`1.InnerInvoke()
   в System.Threading.Tasks.Task.Execute()<---

我尝试手动安装它，没有任何反应...

问题：

最后一个字母“o”不是“Hello”而是“??o”，所以总是要做什么？我使用了不同的代码，什么都没有（我使用 Sockets 进行数据传输

客户端 C++：

void StartConnect(string in, string out)
{
    WSAData wsaData;
    SOCKADDR_IN addr;
    int result = WSAStartup(MAKEWORD(2, 2), &wsaData);
    cout << "startup: " << result << endl;

    SOCKET s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
    addr.sin_family = AF_INET;
    addr.sin_port = htons(8005);
    addr.sin_addr.s_addr = inet_addr("127.0.0.1");

    result = connect(s, (SOCKADDR*)&addr, sizeof(addr));
    cout << "Connect: " << result << endl;

    int count = 0;
    char sendBuf[512] = "Hello";
    int sendResult;
    sendResult = send(s, sendBuf, sizeof(sendBuf), 0);

}

服务器c#：

        static int port = 8005; // порт для приема входящих запросов
        static void Main(string[] args)
        {
            // получаем адреса для запуска сокета
            IPEndPoint ipPoint = new IPEndPoint(IPAddress.Parse("127.0.0.1"), port);

            // создаем сокет
            Socket listenSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            try
            {
                // связываем сокет с локальной точкой, по которой будем принимать данные
                listenSocket.Bind(ipPoint);

                // начинаем прослушивание
                listenSocket.Listen(10);

                Console.WriteLine("Сервер запущен. Ожидание подключений...");

                while (true)
                {
                    Socket handler = listenSocket.Accept();
                    // получаем сообщение
                    StringBuilder builder = new StringBuilder();
                    int bytes = 0; // количество полученных байтов
                    byte[] data = new byte[512]; // буфер для получаемых данных

                    do
                    {
                        bytes = handler.Receive(data);
                        builder.Append(Encoding.Unicode.GetString(data, 0, bytes));
                    }
                    while (handler.Available > 0);

                    Console.WriteLine(DateTime.Now.ToShortTimeString() + ": " + builder.ToString());

                    // отправляем ответ
                    string message = "ваше сообщение доставлено";
                    data = Encoding.Unicode.GetBytes(message);
                    handler.Send(data);
                    // закрываем сокет
                    handler.Shutdown(SocketShutdown.Both);
                    handler.Close();
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
        }

我尝试转换成另一种utf16格式，还是不行……但是C#的客户端和服务端都没有出现这样的问题，告诉我怎么办？