如何在C#中复制文件

using System;
using System.IO;

class Program
{
    static void Main(string[] args)
    {
        string sourceFile = "source.txt";
        string destinationFile = "destination.txt";

        try
        {
            File.Copy(sourceFile, destinationFile, true);
            Console.WriteLine("文件已复制。");
        }
        catch (Exception ex)
        {
            Console.WriteLine("发生异常: " + ex.Message);
        }
    }
}