迭代子目录

Question

写了个简单的类，递归得到给定目录下的所有子目录，但是发觉只能得到第一层，不知道代码哪里逻辑有错误，请大家帮忙看看，头有点晕～谢谢！
    class utils
    {
        private List<string> folderAll = new List<string>();
        
        public List<string> FolderAll
        {
            get
            {
                return this.folderAll;
            }
        }        public void getAllFolders(string folderParent)
        {
            DirectoryInfo foldRoot = new DirectoryInfo(folderParent);
            
            if (foldRoot.Exists)
            {
                DirectoryInfo[] foldSubs = foldRoot.GetDirectories();                foreach (DirectoryInfo foldSub in foldSubs)
                {
                    this.folderAll.Add(foldSub.Name);
                    getAllFolders(foldSub.Name.ToString());
                }
            }
        }
    }

Answer 1

foldSub.Name
修改为
foldSub.FullName

Answer 2

还有lz不停的new DirectoryInfo很好玩吗？
改用DirectoryInfo来递归不是更方便？

Answer 3

using System;
using System.Collections.Generic;
using System.Text;
using System.IO;namespace ConsoleApplication2
{
    class utils
    {
        private List<string> folderAll = new List<string>();        public List<string> FolderAll
        {
            get
            {
                return this.folderAll;
            }
        }        public void getAllFolders(string folderParent)
        {
            DirectoryInfo foldRoot = new DirectoryInfo(folderParent);            if (foldRoot.Exists)
            {
                DirectoryInfo[] foldSubs = foldRoot.GetDirectories();
                
                
                
                foreach (DirectoryInfo foldSub in foldSubs)
                {
                    this.folderAll.Add(foldSub.FullName);
                    getAllFolders(foldSub.FullName.ToString());
                }
            }
        }
    }
    class Program
    {
        static void Main(string[] args)
        {
            utils u = new utils();
            u.getAllFolders(@"e:\s");
            foreach (string s in u.FolderAll)
            {
                Console.WriteLine(s.ToString());            }
            Console.ReadLine();
        }
    }
}
2楼正确啊，是路径问题啊，要使用全路径，而不是目录名字

Answer 4

2楼是我自己囧不停的new新对象当然不好，把这个对象移到函数外面，每次用的时候先empty一次，是这个意思？

Answer 5

public void getAllFolders(DirectoryInfo folderParent)
这么定义方法不就可以了
再加个string的重载，就能和原来一样的方式调用了