C# 使用通配符复制多个文件并保留文件名

Question

我需要使用不包含完整信息的文本文件从目录复制多个文件。

NCR.txt:
红色

目标目录中有:
red1.txt
red3.txt
red44.txt

dest目录需要有:
red1.txt
red3.txt
red44.txt

我的代码:

System.IO.Directory.CreateDirectory(@"C:\nPrep\" + textBox1.Text + "\\red");
        if (checkBox3.Checked)
        {
            String[] file_names = File.ReadAllLines(@"C:\NCR.txt");

            foreach (string file_name in file_names)
            {
                string[] files = Directory.GetFiles(textBox2.Text, file_name + "*.txt");
                foreach (string file in files)
                    System.IO.File.Copy(file, @"C:\nPrep\" + textBox1.Text + "\\red\\");
            }

        }

Answer 1

//FileInfo & DirectoryInfo are in System.IO
//This is something you should be able to tweak to your specific needs.

static void CopyFiles(DirectoryInfo source, 
                      DirectoryInfo destination, 
                      bool overwrite, 
                      string searchPattern)
{
    FileInfo[] files = source.GetFiles(searchPattern);

    //this section is what's really important for your application.
    foreach (FileInfo file in files)
    {
        file.CopyTo(destination.FullName + "\\" + file.Name, overwrite);
    }
}

这个版本更适合复制粘贴:

static void Main(string[] args)
{
    DirectoryInfo src = new DirectoryInfo(@"C:\temp");
    DirectoryInfo dst = new DirectoryInfo(@"C:\temp3");

    /*
     * My example NCR.txt
     *     *.txt
     *     a.lbl
     */
    CopyFiles(src, dst, true);
}

static void CopyFiles(DirectoryInfo source, DirectoryInfo destination, bool overwrite)
{
    List<FileInfo> files = new List<FileInfo>();

    string[] fileNames = File.ReadAllLines("C:\\NCR.txt");

    foreach (string f in fileNames)
    {
        files.AddRange(source.GetFiles(f));
    }

    if (!destination.Exists)
        destination.Create();

    foreach (FileInfo file in files)
    {
        file.CopyTo(destination.FullName + @"\" + file.Name, overwrite);
    }
}