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Vitokhv
Asked:2020-10-21 09:44:12 +0000 UTC2020-10-21 09:44:12 +0000 UTC

如何正确重命名多个文件？

  • 772

告诉我如何正确确定x32/x64系统中的文件夹，检查文件是否存在，并重命名它们？

    private void RenameButton_Click(object sender, EventArgs e)
    {
        if (Directory.Exists(Environment.ExpandEnvironmentVariables("%ProgramFiles(x86)%\\MyApp")) == true)
        {
            if (File.Exists(Environment.ExpandEnvironmentVariables("%ProgramFiles(x86)%\\MyApp\\testOriginal1.txt")) & (File.Exists(Environment.ExpandEnvironmentVariables("%ProgramFiles(x86)%\\MyApp\\testOriginal2.txt"))))
            {
                File.Move(Environment.ExpandEnvironmentVariables("%ProgramFiles(x86)%\\MyApp\\testOriginal1.txt"), Environment.ExpandEnvironmentVariables("%ProgramFiles(x86)%\\MyApp\\testRename1.txt"));
                File.Move(Environment.ExpandEnvironmentVariables("%ProgramFiles(x86)%\\MyApp\\testOriginal2.txt"), Environment.ExpandEnvironmentVariables("%ProgramFiles(x86)%\\MyApp\\testRename2.txt"));
            }
        }
        else if (Directory.Exists(Environment.ExpandEnvironmentVariables("%ProgramFiles(x86)%\\MyApp")) == false)
        {
            if (File.Exists(Environment.ExpandEnvironmentVariables("%ProgramFiles%\\MyApp\\testOriginal1.txt")) & (File.Exists(Environment.ExpandEnvironmentVariables("%ProgramFiles%\\MyApp\\testOriginal2.txt"))))
            {
                File.Move(Environment.ExpandEnvironmentVariables("%ProgramFiles%\\MyApp\\testOriginal1.txt"), Environment.ExpandEnvironmentVariables("%ProgramFiles%\\MyApp\\testRename1.txt"));
                File.Move(Environment.ExpandEnvironmentVariables("%ProgramFiles%\\MyApp\\testOriginal2.txt"), Environment.ExpandEnvironmentVariables("%ProgramFiles%\\MyApp\\testRename2.txt"));
            }
        }
    }

发现代码缺少已重命名文件的定义，即 如果文件testRename1.txt存在testRename2.txt，则应用程序将引发错误...

c#

1 个回答

  1. Best Answer

    我没有检查工作，但这是选项

    static void Main(string[] args)
{
    string win32Path;
    string win64Path;
    TryGetPathes(out win32Path, out win64Path);

    string appNameDir = "MyApp";
    string oldName = "testOriginal";
    string newName = "testRename";

    if (win64Path.Length > 0)
    {
        RenameFile(win64Path, oldName, newName);
    }
    else
    {
        RenameFile(win32Path, oldName, newName);
    }
}



private static void TryGetPathes(out string win32Path, out string win64Path)
{
    win32Path = Environment.ExpandEnvironmentVariables("%ProgramFiles%");

    //если системная переменная не существуюет, то будет выдана ошибка (см. документацию)
    try
    {
        win64Path = Environment.ExpandEnvironmentVariables("%ProgramFiles(x86)%");
    }
    catch (Exception)
    {
        win64Path = String.Empty;
    }

}

private static void RenameFile(string winPath, string oldName, string newName)
{
    string oldFile1 = System.IO.Path.Combine(winPath,
                                        String.Concat(oldName, "1", ".txt"));
    string newFile1 = System.IO.Path.Combine(winPath,
                                        String.Concat(newName, "1", ".txt"));

    string oldFile2 = System.IO.Path.Combine(winPath,
                                        String.Concat(oldName, "2", ".txt"));
    string newFile2 = System.IO.Path.Combine(winPath,
                                            String.Concat(newName, "2", ".txt"));

    try
    {
        System.IO.File.Move(oldFile1, newFile1);
        System.IO.File.Move(oldFile2, newFile2);
    }
    catch (Exception ex)
    {
        Debug.WriteLine($"Ошибка с файлами: {ex.Message}");
    }
}

    PS我刚刚发布它并注意到一个错误:)RenameFile()您还必须将程序文件夹的名称传递给方法appNameDir并将其添加到文件的路径中。

    • 1

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