Question

我正在组建一个程序，从PC中提取大量信息并将其发送到服务器。我目前正在努力尝试从具有多个驱动器的电脑中提取硬盘信息，但我只能让它与第一个驱动器一起工作。下面是提取实际驱动器信息的代码，下面是将其写入控制台的代码：

public static string CurrentDiskUsage()
    {
        DriveInfo[] drives = DriveInfo.GetDrives();
        foreach (DriveInfo drive in drives)
        {
            try
            {

                if (drive.IsReady)
                {
                    double result = 100 * (double) drive.TotalFreeSpace / drive.TotalSize;
                    result = Math.Round(result, 2, MidpointRounding.AwayFromZero);
                    string driveInformation = null;
                    driveInformation += drive.Name + "\n" + drive.DriveFormat + "\n" + "Drive total size: " + FormatBytes(drive.TotalSize) + "\n" + "Drive total free space: " + FormatBytes(drive.TotalFreeSpace) + "\n" + "Free space as percentage: " + result + "% \n ";
                    return driveInformation;
                }
            }
            catch (Exception e)
            {
                return "Fail";
                Console.WriteLine(e);
            }
        }

        return "Fail";
    }

将信息写入控制台

String[] Content  = new string[7]; 

        Content[0] = reportFunctions.GetOsName();
        Content[1] = reportFunctions.IsSoftwareInstalled();
        Content[2] = reportFunctions.CurrentLoggedInUser();
        Content[3] = reportFunctions.GetPcName();
        Content[4] = reportFunctions.CurrentDiskUsage();

        int i = 0;
        while (i < 6)
        {
            Console.WriteLine(Content[i]);
            i++;
        }
}

Answer 1

在第一个循环结束时，你有＆＃34; return "Fail";＆＃34;

删除此行，因为它阻止了进一步的努力。您可能还想从异常中删除返回，就像您的CD驱动器说驱动器D没准备好您的代码将停止，而不是继续

编辑：而不是返回 - 因为您还尝试返回一串驱动器信息 - 只需将此数据写入控制台。返回意味着停止做我现在正在做的事情并回到我身边的任何事情。

你的代码需要看起来更像这样（PS你也应该使用Environment.NewLine而不是\ n因为这总是会为操作系统返回正确的换行符）

public static string CurrentDiskUsage()
    {
        String driveInformation ="";   //your code overwrote this with each loop
        DriveInfo[] drives = DriveInfo.GetDrives();
        foreach (DriveInfo drive in drives)
        {
            try
            {

                if (drive.IsReady)
                {
                    double result = 100 * (double) drive.TotalFreeSpace / drive.TotalSize;
                    result = Math.Round(result, 2, MidpointRounding.AwayFromZero);
                    driveInformation += drive.Name + Environment.NewLine + drive.DriveFormat + Environment.NewLine + "Drive total size: " + FormatBytes(drive.TotalSize) + Environment.NewLine + "Drive total free space: " + FormatBytes(drive.TotalFreeSpace) + Environment.NewLine + "Free space as percentage: " + result + "% "+Environment.NewLine;
                }
            }
            catch (Exception e)
            {
                DriveInformation+="Fail:"+Drive.Name+Environment.NewLine+e.Message;
            }
        }

       return driveInformation;
    }

获取硬盘信息仅返回C驱动器信息。 C＃

1 个答案: