使用c/c++代码获取window的物理硬盘的读写速度/s

要获取Windows系统的物理硬盘的读写速度，你可以使用Windows API函数来实现。以下是一个使用C++代码获取硬盘读写速度的示例：

#include <windows.h>
#include <iostream>

int main() {
    ULARGE_INTEGER lastTotalReadBytes;
    ULARGE_INTEGER lastTotalWriteBytes;
    FILETIME lastTime;

    if (!GetSystemTimes(&lastTime, NULL, NULL)) {
        std::cout << "Failed to get system times." << std::endl;
        return 1;
    }

    if (!GetDiskFreeSpaceEx(NULL, NULL, NULL, &lastTotalWriteBytes)) {
        std::cout << "Failed to get disk free space." << std::endl;
        return 1;
    }

    while (true) {
        ULARGE_INTEGER totalReadBytes;
        ULARGE_INTEGER totalWriteBytes;
        FILETIME currentTime;

        if (!GetSystemTimes(&currentTime, NULL, NULL)) {
            std::cout << "Failed to get system times." << std::endl;
            return 1;
        }

        if (!GetDiskFreeSpaceEx(NULL, NULL, NULL, &totalWriteBytes)) {
            std::cout << "Failed to get disk free space." << std::endl;
            return 1;
        }

        ULARGE_INTEGER readBytes;
        readBytes.QuadPart = ((ULONGLONG)totalWriteBytes.QuadPart - (ULONGLONG)lastTotalWriteBytes.QuadPart);

        ULARGE_INTEGER elapsedTime;
        elapsedTime.QuadPart = ((ULONGLONG)currentTime.dwLowDateTime - (ULONGLONG)lastTime.dwLowDateTime);

        double readSpeed = (double)readBytes.QuadPart / (double)elapsedTime.QuadPart * 10000;

        std::cout << "Disk read speed: " << readSpeed << " bytes/s" << std::endl;

        lastTotalReadBytes = totalReadBytes;
        lastTime = currentTime;

        Sleep(1000); // 每秒更新一次读写速度
    }

    return 0;
}

这个示例代码使用了`GetSystemTimes`函数获取系统时间和`GetDiskFreeSpaceEx`函数获取硬盘空闲空间和写入字节数。然后，通过计算两个时间点之间的差异和写入字节数之差，得出硬盘读取速度。

请注意，以上代码只是一个简单示例，仅获取硬盘的写入速度，并在每秒更新一次读取速度。你可以根据自己的需求进行修改和扩展。