写一个windows版本的DLL注入程序 c++版本

以下是一个简单的DLL注入程序的C++代码：

#include <Windows.h>
#include <iostream>

using namespace std;

int main()
{
    // 获取目标进程ID
    DWORD pid;
    cout << "请输入目标进程ID：";
    cin >> pid;

    // 打开目标进程
    HANDLE hProcess = OpenProcess(PROCESS_ALL_ACCESS, FALSE, pid);
    if (hProcess == NULL)
    {
        cout << "打开进程失败！" << endl;
        return 0;
    }

    // 获取DLL路径
    char dllPath[MAX_PATH];
    cout << "请输入DLL路径：";
    cin >> dllPath;

    // 在目标进程中分配内存空间
    LPVOID remoteMem = VirtualAllocEx(hProcess, NULL, strlen(dllPath) + 1, MEM_COMMIT, PAGE_READWRITE);
    if (remoteMem == NULL)
    {
        cout << "分配内存空间失败！" << endl;
        CloseHandle(hProcess);
        return 0;
    }

    // 将DLL路径写入目标进程中的内存空间
    if (!WriteProcessMemory(hProcess, remoteMem, dllPath, strlen(dllPath) + 1, NULL))
    {
        cout << "写入内存失败！" << endl;
        VirtualFreeEx(hProcess, remoteMem, 0, MEM_RELEASE);
        CloseHandle(hProcess);
        return 0;
    }

    // 获取LoadLibraryA函数的地址
    HMODULE kernel32 = GetModuleHandleA("kernel32.dll");
    LPVOID loadLibraryA = (LPVOID)GetProcAddress(kernel32, "LoadLibraryA");

    // 在目标进程中创建远程线程，调用LoadLibraryA函数加载DLL
    HANDLE hRemoteThread = CreateRemoteThread(hProcess, NULL, 0, (LPTHREAD_START_ROUTINE)loadLibraryA, remoteMem, 0, NULL);
    if (hRemoteThread == NULL)
    {
        cout << "创建远程线程失败！" << endl;
        VirtualFreeEx(hProcess, remoteMem, 0, MEM_RELEASE);
        CloseHandle(hProcess);
        return 0;
    }

    cout << "DLL注入成功！" << endl;

    // 关闭句柄
    WaitForSingleObject(hRemoteThread, INFINITE);
    VirtualFreeEx(hProcess, remoteMem, 0, MEM_RELEASE);
    CloseHandle(hRemoteThread);
    CloseHandle(hProcess);

    return 0;
}

使用方法：

编译上述代码，生成可执行文件；
打开目标进程；
运行生成的可执行文件，输入目标进程的进程ID和DLL文件的路径；
程序会在目标进程中加载指定的DLL文件。