#pragma once #include <iostream> using namespace std; class OpenFile { public: OpenFile(); ~OpenFile(); static OpenFile* instance(); private: int getInt(); private: static OpenFile* m_openfile; }; #include <iostream> #include "openFile.h" using namespace std; int main() { OpenFile* m_opf; m_opf = OpenFile::instance(); } 如何让m_opf调用getInt()函数

要让 `m_opf` 调用 `getInt()` 函数，需要将 `getInt()` 函数的访问权限从 `private` 改为 `public`，即将下面的代码：

private:
    int getInt();

改为：

public:
    int getInt();

这样，`getInt()` 函数就可以被 `m_opf` 调用了。

相关问题

修改以下代码将视屏发送给服务端并将视频保存到本地#define _CRT_SECURE_NO_WARNINGS #include<iostream> #include <sstream> #include<string> #include <fstream> #include <vector> #include<winsock.h> #pragma

注：为了确保代码的正确性和安全性，以下是修改后的代码：

#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
#include <sstream>
#include <string>
#include <fstream>
#include <vector>
#include <winsock.h>

#pragma comment(lib,"ws2_32.lib")

void SaveVideo(const std::string& filePath, const std::vector<char>& videoData) {
    std::ofstream file(filePath, std::ios::out | std::ios::binary);
    if (file.is_open()) {
        file.write(videoData.data(), videoData.size());
        file.close();
        std::cout << "Video saved successfully." << std::endl;
    }
    else {
        std::cerr << "Failed to save video." << std::endl;
    }
}

int main() {
    WSADATA wsaData;
    if (WSAStartup(MAKEWORD(2, 2), &wsaData) != 0) {
        std::cerr << "Failed to initialize winsock." << std::endl;
        return 1;
    }

    SOCKET clientSocket = socket(AF_INET, SOCK_STREAM, 0);
    if (clientSocket == INVALID_SOCKET) {
        std::cerr << "Failed to create socket." << std::endl;
        WSACleanup();
        return 1;
    }

    sockaddr_in serverAddress{};
    serverAddress.sin_family = AF_INET;
    serverAddress.sin_port = htons(12345); // 修改为服务端的端口号
    serverAddress.sin_addr.s_addr = inet_addr("127.0.0.1"); // 修改为服务端的IP地址

    if (connect(clientSocket, reinterpret_cast<sockaddr*>(&serverAddress), sizeof(serverAddress)) != 0) {
        std::cerr << "Failed to connect to the server." << std::endl;
        closesocket(clientSocket);
        WSACleanup();
        return 1;
    }

    std::string filePath = "video.mp4"; // 修改为要保存的视频文件路径
    std::ifstream file(filePath, std::ios::in | std::ios::binary);
    if (file.is_open()) {
        std::vector<char> videoData((std::istreambuf_iterator<char>(file)), std::istreambuf_iterator<char>());
        file.close();

        // 发送视频数据到服务端
        if (send(clientSocket, videoData.data(), videoData.size(), 0) == SOCKET_ERROR) {
            std::cerr << "Failed to send video data." << std::endl;
        }
        else {
            std::cout << "Video data sent successfully." << std::endl;
        }

        // 保存视频到本地
        SaveVideo("received_video.mp4", videoData);
    }
    else {
        std::cerr << "Failed to open video file." << std::endl;
    }

    closesocket(clientSocket);
    WSACleanup();

    return 0;
}

请确保以下几点：

1. 修改 `serverAddress.sin_port` 为服务端的端口号。
2. 修改 `serverAddress.sin_addr.s_addr` 为服务端的IP地址。
3. 修改 `filePath` 为要保存的视频文件路径。
4. 确保链接了 `ws2_32.lib` 库。

注意：这是一个简单的示例代码，仅展示了如何将视频数据发送到服务端并将其保存到本地。实际情况可能需要进行更多的错误处理和安全性考虑。

#include <Windows.h> #include <iostream> #include <fstream> #include <string> #include <vector> #include <algorithm> #include <cstdlib> #include <ctime> #include <conio.h> #include <winsock.h> #include <ws2bth.h> #include <bluetoothapis.h> #pragma comment(lib, "ws2_32.lib") using namespace std; const string CONFIG_FILE = "config.ini"; const int MAX_BLUETOOTH_DEVICES = 10; int main() { // 读取配置文件 ifstream config(CONFIG_FILE); if (!config.is_open()) { cout << "无法打开配置文件！" << endl; return -1; } string line; int search_count = 0; while (getline(config, line)) { if (line.find("search_count") != string::npos) { search_count = stoi(line.substr(line.find("=") + 1)); break; } } config.close(); // 初始化蓝牙 WSAData wsaData; int iResult = WSAStartup(MAKEWORD(2, 2), &wsaData); if (iResult != NO_ERROR) { cout << "WSAStartup 失败！" << endl; return -1; } // 枚举蓝牙设备 BLUETOOTH_DEVICE_SEARCH_PARAMS searchParams = { sizeof(BLUETOOTH_DEVICE_SEARCH_PARAMS) }; searchParams.fReturnAuthenticated = TRUE; searchParams.fReturnRemembered = TRUE; searchParams.fReturnUnknown = TRUE; searchParams.hRadio = NULL; BLUETOOTH_DEVICE_INFO deviceInfo = { sizeof(BLUETOOTH_DEVICE_INFO) }; HBLUETOOTH_DEVICE_FIND deviceFindHandle; vector<BLUETOOTH_DEVICE_INFO> devices; deviceFindHandle = BluetoothFindFirstDevice(&searchParams, &deviceInfo); if (deviceFindHandle != NULL) { do { devices.push_back(deviceInfo); } while (BluetoothFindNextDevice(deviceFindHandle, &deviceInfo)); BluetoothFindDeviceClose(deviceFindHandle); } // 输出蓝牙设备名称到文档 ofstream file("CheckBT.log"); if (devices.size() >= MAX_BLUETOOTH_DEVICES) { file << "PASS" << endl; } else { file << "FAIL" << endl; } for (auto device : devices) { file << device.szName << endl; } // 清理蓝牙 WSACleanup(); return 0; }

这是一个使用 WinSock 和 Bluetooth API 枚举蓝牙设备并将设备名称输出到文档的 C++ 程序。程序首先读取配置文件，其中包括要搜索的蓝牙设备数量。然后，程序初始化 WinSock 和枚举蓝牙设备。将找到的设备添加到一个 vector 中，最后将设备名称输出到文档中。程序最后清理 WinSock。