文件夹类Directory的常用方法

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```using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;using System.IO; namespace FileOptionApplication{    public partial class Form3 : Form    {        public Form3()        {            InitializeComponent();        }        private static string directory_path = "c:\\qs250";        private static string directory_otherpath = "c:\\qqqq";        /// <summary>        /// 删除目录鼠标单击事件        /// </summary>        private void button1_Click(object sender, EventArgs e)        {            try            {                Directory.CreateDirectory(directory_path);                button2.Enabled = true;                button1.Enabled = false;                button3.Enabled = true;                button4.Enabled = true;                button5.Enabled = true;                MessageBox.Show("文件夹成功建立。", "警报");            }            catch (Exception mm)            {                MessageBox.Show("磁盘操作错误，原因：" + Convert.ToString(mm), "警报");            }        }        /// <summary>        /// 删除目录鼠标单击事件        /// </summary>        private void button2_Click(object sender, EventArgs e)        {            try            {                Directory.Delete(directory_path);                button2.Enabled = false;                button1.Enabled = true;                button3.Enabled = false;                button4.Enabled = false;                button5.Enabled = false;                MessageBox.Show("文件夹删除建立。", "警报");            }            catch (Exception mm)            {                MessageBox.Show("磁盘操作错误，原因：" + Convert.ToString(mm), "警报");            }        }        /// <summary>        /// 移动目录鼠标单击事件        /// </summary>        private void button3_Click(object sender, EventArgs e)        {            try            {                Directory.Move(directory_path, directory_otherpath);                MessageBox.Show("文件夹移动成功。", "警报");                //举例来讲，如果您尝试将c:\mydir 移到c:\public，并且c:\public 已存在，                //则此方法引发IOException。您必须将“c:\\public\\mydir”指定为destDirName 参数，或者指定新目录名，例如“c:\\newdir”。            }            catch (Exception mm)            {                MessageBox.Show("磁盘操作错误，原因：" + Convert.ToString(mm), "警报");            }        }        /// <summary>        /// 目录创建时间鼠标单击事件        /// </summary>        private void button4_Click(object sender, EventArgs e)        {            try            {    MessageBox.Show(string.Format("{0:G}",Directory.GetCreationTime(directory_path)), "提示");            //获取时间格式参见DateTimeFormatInfo            }            catch (Exception mm)            {                MessageBox.Show("磁盘操作错误，原因：" + Convert.ToString(mm), "警报");            }        }        /// <summary>        /// 返回指定目录文件鼠标单击事件        /// </summary>        private void button5_Click(object sender, EventArgs e)        {            try            {                string[] fileEntries = Directory.GetFiles(directory_path);                if (fileEntries.Length != 0)                {                    foreach (string s in fileEntries)                    {                        if (File.Exists(s))                        {                            MessageBox.Show("内有文件信息:" + s, "提示");                        }                    }                }                else                {                    MessageBox.Show("空文件夹", "提示");                }                //获取时间格式参见DateTimeFormatInfo            }            catch (Exception mm)            {                MessageBox.Show("磁盘操作错误，原因：" + Convert.ToString(mm), "警报");            }        }    }}```using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;using System.IO; namespace FileOptionApplication{    public partial class Form3 : Form    {        public Form3()        {            InitializeComponent();        }        private static string directory_path = "c:\\qs250";        private static string directory_otherpath = "c:\\qqqq";        /// <summary>        /// 删除目录鼠标单击事件        /// </summary>        private void button1_Click(object sender, EventArgs e)        {            try            {                Directory.CreateDirectory(directory_path);                button2.Enabled = true;                button1.Enabled = false;                button3.Enabled = true;                button4.Enabled = true;                button5.Enabled = true;                MessageBox.Show("文件夹成功建立。", "警报");            }            catch (Exception mm)            {                MessageBox.Show("磁盘操作错误，原因：" + Convert.ToString(mm), "警报");            }        }        /// <summary>        /// 删除目录鼠标单击事件        /// </summary>        private void button2_Click(object sender, EventArgs e)        {            try            {                Directory.Delete(directory_path);                button2.Enabled = false;                button1.Enabled = true;                button3.Enabled = false;                button4.Enabled = false;                button5.Enabled = false;                MessageBox.Show("文件夹删除建立。", "警报");            }            catch (Exception mm)            {                MessageBox.Show("磁盘操作错误，原因：" + Convert.ToString(mm), "警报");            }        }        /// <summary>        /// 移动目录鼠标单击事件        /// </summary>        private void button3_Click(object sender, EventArgs e)        {            try            {                Directory.Move(directory_path, directory_otherpath);                MessageBox.Show("文件夹移动成功。", "警报");                //举例来讲，如果您尝试将c:\mydir 移到c:\public，并且c:\public 已存在，                //则此方法引发IOException。您必须将“c:\\public\\mydir”指定为destDirName 参数，或者指定新目录名，例如“c:\\newdir”。            }            catch (Exception mm)            {                MessageBox.Show("磁盘操作错误，原因：" + Convert.ToString(mm), "警报");            }        }        /// <summary>        /// 目录创建时间鼠标单击事件        /// </summary>        private void button4_Click(object sender, EventArgs e)        {            try            {    MessageBox.Show(string.Format("{0:G}",Directory.GetCreationTime(directory_path)), "提示");            //获取时间格式参见DateTimeFormatInfo            }            catch (Exception mm)            {                MessageBox.Show("磁盘操作错误，原因：" + Convert.ToString(mm), "警报");            }        }        /// <summary>        /// 返回指定目录文件鼠标单击事件        /// </summary>        private void button5_Click(object sender, EventArgs e)        {            try            {                string[] fileEntries = Directory.GetFiles(directory_path);                if (fileEntries.Length != 0)                {                    foreach (string s in fileEntries)                    {                        if (File.Exists(s))                        {                            MessageBox.Show("内有文件信息:" + s, "提示");                        }                    }                }                else                {                    MessageBox.Show("空文件夹", "提示");                }                //获取时间格式参见DateTimeFormatInfo            }            catch (Exception mm)            {                MessageBox.Show("磁盘操作错误，原因：" + Convert.ToString(mm), "警报");            }        }    }}
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