创建文件夹

Question

如何创建多个文件夹，就如在桌面上新建第一个时，名为“新建 文本文档.txt”，新建第二个时，名为“新建 文本文档.txt（1）”，新建第三个时，名为“新建 文本文档.txt（3）”，当我删除第一个“新建 文本文档.txt”，再重新创建一个时，其名“新建 文本文档.txt”，该怎么做呢？

Answer 1

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;namespace DataGridViewSampleExm
{
    public partial class Form4 : Form
    {
        public Form4()
        {
            InitializeComponent();
        }        private void button1_Click(object sender, EventArgs e)
        {
            FolderBrowserDialog folderBrowserDialog = new FolderBrowserDialog();            if(folderBrowserDialog.ShowDialog()==DialogResult.OK)
            {
                this.textBox1.Text = folderBrowserDialog.SelectedPath;
            }
        }        /// <summary>
        /// 创建文件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button2_Click(object sender, EventArgs e)
        {
            string currPath = this.textBox1.Text.Trim();            if(!File.Exists(Path.Combine(currPath,"新建 文本文档.txt")))
            {
                File.Create(Path.Combine(currPath, "新建 文本文档.txt"));
                return;
            }            string[] directoryInfos = Directory.GetFiles(currPath, "正则表达式，这不怎么会，问别人吧",SearchOption.TopDirectoryOnly);            //接下来，去最大的那个数+1            //创建文本File.Create(Path.Combine(currPath, "新建 文本文档.txt（i）"));
        }
    }
}

Answer 2

int value=0;
string fileName;
bool key =false;while(key==false)
{
if(value==0)
{
fileName="新建文件夹.txt";
}
else
{
  fileName="新建文件夹（"+value+").txt";
}if(File.Exist(fileName)
{
    value++;
    key=false;
}
else
{
   File.Create();
   key=true;
}

Answer 3

判断if (System.IO.Directory.Exists(savePath)){} 是否存在。获取文件夹数

Answer 4

按钮单击事件建立~~~经过测试~~~~
新建文件 副本； 新建文件 副本 副本；新建文件 副本 副本 副本;
Windows 7 的效果 private void bnt_Click(object sender, EventArgs e)
{
            string listVs = 路径名;
            bool w = true;
            string x = "新建文件";
            string s = " 副本";
            while (w == true)
            {
                if (File.Exists(listVs + "\\" + x + ".txt") == true)
                {
                    x += s;
                    w = true;
                }
                else
                {
                    try
                    {
                        File.CreateText(listVs + "\\" + x + ".txt");
                        w = false;
                    }
                    catch (Exception)
                    {
                        w = true;
                    }
                }
            }
            GetListViewItem(listVs, imageList2, listView1);
            for (int i = 0; i < listView1.Items.Count; i++ )
            {
                if (listView1.Items[i].Text == x + ".txt")
                {
                    listView1.Items[i].BeginEdit();
                    break;
                }
               
           }
          
}

Answer 5

按钮单击事件建立~~~经过测试~~~~
新建文件 副本； 新建文件 副本 副本；新建文件 副本 副本 副本;
Windows 7 的效果
 
 private void bnt_Click(object sender, EventArgs e)
{
            string listVs = 路径名;
            bool w = true;
            string x = "新建文件";
            string s = " 副本";
            while (w == true)
            {
                if (File.Exists(listVs + "\\" + x + ".txt") == true)
                {
                    x += s;
                    w = true;
                }
                else
                {
                    try
                    {
                        File.CreateText(listVs + "\\" + x + ".txt");
                        w = false;
                    }
                    catch (Exception)
                    {
                        w = true;
                    }
                }
            }
            //GetListViewItem(listVs, imageList2, listView1);
            //for (int i = 0; i < listView1.Items.Count; i++ )
            //{
            //    if (listView1.Items[i].Text == x + ".txt")
            //    {
            //        listView1.Items[i].BeginEdit();
            //        break;
            //    }
               
            //}
          
}