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Question

小弟初学C#，各位大侠请帮我看看这段代码有什么问题using System; 
using System.IO; class MyTest
{
public static void Main() 
{
Directory d=new Directory("F:\\data");
Directory sd;
try
{
sd=d.CreateDirectory("test");
}
catch(IOException e)
{
Console.WriteLine("Operation failed because:{0}",e);
return;
}
Console.WriteLine("Create Directory Successfully!");
}
}

Answer 1

public static void Main() 
    {
        // Specify the directory you want to manipulate.
        string path = @"c:\MyDir";        try 
        {
            // Determine whether the directory exists.
            if (Directory.Exists(path)) 
            {
                Console.WriteLine("That path exists already.");
                return;
            }            // Try to create the directory.
            DirectoryInfo di = Directory.CreateDirectory(path);
            Console.WriteLine("The directory was created successfully at {0}.", Directory.GetCreationTime(path));            // Delete the directory.
            di.Delete();
            Console.WriteLine("The directory was deleted successfully.");
        } 
        catch (Exception e) 
        {
            Console.WriteLine("The process failed: {0}", e.ToString());
        } 
        finally {}
    }

Answer 2

Directory提供的都是静态方法，不能new出来

Answer 3

有两个非常明显的错误1。Directory 的CreateDirectory是一个静态方法，你这里的用法是错误的；
2。Directory本身就是一个静态类，这样实力化是不行的，且其根本没有相应的构造函数给你调用所以，建议使用DirectoryInfo类你的程序这样改改就可以了using System; 
using System.IO; 
class DirectoryTest 
{ 
   public static void Main() 
   { 
      DirectoryInfo d = new DirectoryInfo("f:\\c#"); 
      DirectoryInfo d1; 
      try 
      { 
         d1=d.CreateSubdirectory("file1");
      } 
      catch(IOException e) 
      { 
         Console.WriteLine("Directory file1 failed because:{0}",e); 
         return; 
      } 
      Console.WriteLine("Create Directory Successfully!"); 
   } 
}