141107●Winform操作文件目录及文件
2020-12-13 16:08
标签：winform io ar os 使用 sp for 文件 on 文件及文件夹操作： 一、File类 1.创建： FileStream fs = File.Create(文件路径); 记住，创建完成后，需要关闭fs，否则别人无法使用这个文件. FileStream fs = File.Create(@"E:\aaa.txt"); fs.Close(); //using (FileStream fs = File.Create(@"E:\aaa.txt")) //{ // StreamWriter sw = new StreamWriter(fs, Encoding.Default); // sw.WriteLine("Hello World"); // sw.Close(); //} 2、删除 File.Delete(@"E:\aaa.txt"); 3、复制文件 File.Copy(@"e:\test.txt", @"d:\new.txt"); 4、判断文件是否存在 bool isExisted = File.Exists(@"e:\test.txt"); if (isExisted == true) { MessageBox.Show("文件已存在"); } else { MessageBox.Show("OK"); } 5、文件移动 File.Move(@"E:\test.txt", @"d:\aaa.txt"); 6、获取创建时间 DateTime dt = File.GetCreationTime(@"D:\aaa.txt"); this.Text = dt.ToString("yyyy-MM-dd hh:mm:ss"); 7、获取访问时间 DateTime dt = File.GetLastAccessTime(@"D:\aaa.txt"); this.Text = dt.ToString("yyyy-MM-dd hh:mm:ss"); 8、获取最后修改时间 DateTime dt = File.GetLastWriteTime(@"D:\aaa.txt"); this.Text = dt.ToString("yyyy-MM-dd hh:mm:ss"); 9、修改创建时间 DateTime time = DateTime.Now.AddSeconds(10000); File.SetCreationTime(@"D:\aaa.txt",time); 10、修改访问时间 DateTime time = DateTime.Now.AddSeconds(-1000); File.SetLastAccessTime(@"D:\aaa.txt", time); 11、修改最后修改时间 DateTime time = DateTime.Now.AddSeconds(-20000); File.SetLastWriteTime(@"D:\aaa.txt", time); 12、文件改名 File.Move(@"d:\aaa.txt", @"d:\test.txt"); 13、创建目录 Directory.CreateDirectory(@"d:\mydir"); 14、删除目录 Directory.Delete(@"d:\mydir"); 15、目录是否存在 MessageBox.Show(Directory.Exists(@"d:\mydir").ToString()); 16、获取子目录 string[] dirs = Directory.GetDirectories(@"c:\windows"); foreach (string s in dirs) { label1.Text += "\n" + s; } 17、获取子文件 string[] files = Directory.GetFiles(@"c:\windows"); foreach (string s in files) { label1.Text += "\n" + s; } 18、获取根目录 this.Text = Directory.GetDirectoryRoot(@"C:\WIndows"); 19、获取上一级 DirectoryInfo di = Directory.GetParent(@"C:\windows\microsoft.net"); this.Text = di.Name; 二、FileInfo类 1、创建文件 FileInfo file = new FileInfo(@"E:\test.txt"); FileStream stream = file.Create(); stream.Close(); 2、删除文件 FileInfo info = new FileInfo(@"E:\test.txt"); info.Delete(); 3、复制文件 FileInfo info = new FileInfo(@"E:\test.txt"); info.CopyTo(@"D:\aaa.txt",true); 4、移动文件 FileInfo info = new FileInfo(@"E:\test.txt"); info.MoveTo(@"D:\test1.txt"); 5、文件是否存在 FileInfo info = new FileInfo(@"E:\test.txt"); bool b = info.Exists; MessageBox.Show(b.ToString()); 6、获取文件名 FileInfo info = new FileInfo(@"E:\test.txt"); string s = info.FullName; MessageBox.Show(s); 7、获取创建时间 FileInfo info = new FileInfo(@"E:\test.txt"); DateTime dt = info.CreationTime; MessageBox.Show(dt.ToString()); 8、获取访问时间 FileInfo info = new FileInfo(@"E:\test.txt"); DateTime dt = info.LastAccessTime; //DateTime dt = File.GetLastAccessTime(@"E:\test.txt"); MessageBox.Show(dt.ToString()); 9、获取修改时间 FileInfo info = new FileInfo(@"E:\test.txt"); DateTime dt = info.LastWriteTime; MessageBox.Show(dt.ToString()); 10、设置创建时间 FileInfo info = new FileInfo(@"E:\test.txt"); info.CreationTime = DateTime.Now.AddDays(1000); 11、设置修改时间 FileInfo info = new FileInfo(@"E:\test.txt"); info.LastWriteTime = DateTime.Now.AddDays(1000); 12、设置访问时间 FileInfo info = new FileInfo(@"E:\test.txt"); info.LastAccessTime = DateTime.Now.AddDays(1000); 13、创建目录 DirectoryInfo info = new DirectoryInfo(@"E:\MyDir"); info.Create(); 14、删除目录 DirectoryInfo info = new DirectoryInfo(@"E:\MyDir"); info.Delete(); 15、移动目录 DirectoryInfo info = new DirectoryInfo(@"E:\MyDir"); info.MoveTo(@"D:\YourDir"); 16、目录是否存在 DirectoryInfo info = new DirectoryInfo(@"E:\MyDir"); bool b = info.Exists; this.Text = b.ToString(); 17、获取目标全名 DirectoryInfo info = new DirectoryInfo(@"E:\MyDir"); //this.Text = info.FullName; this.Text = info.Name; 18、获取子文件 DirectoryInfo info = new DirectoryInfo(@"C:\Windows"); //FileInfo[] files = info.GetFiles(); FileInfo[] files = info.GetFiles("*.exe"); foreach (FileInfo data in files) { string s = ""+ data.FullName + "\t" + data.Extension + "\t" + data.CreationTime.ToString(); listBox1.Items.Add(s); } //string[] files = Directory.GetFiles(); 19、获取子目录 DirectoryInfo info = new DirectoryInfo(@"C:\Windows"); DirectoryInfo[] dirs = info.GetDirectories(); foreach (DirectoryInfo data in dirs) { string s = "" + data.FullName + "\t" + data.CreationTime.ToString(); listBox1.Items.Add(s); } 20、获取驱动信息 DriveInfo[] drivers = DriveInfo.GetDrives(); foreach (DriveInfo dr in drivers) { if (dr.DriveType != DriveType.CDRom) { listBox1.Items.Add(dr.Name + "\t" + dr.DriveType + "\t" + dr.VolumeLabel + "\t" + dr.TotalSize + "\t" + dr.TotalFreeSpace + "\t" + dr.DriveFormat); } else { listBox1.Items.Add(dr.Name + "\t" + dr.DriveType ); } } 141107●Winform操作文件目录及文件 标签：winform io ar os 使用 sp for 文件 on 原文地址：http://www.cnblogs.com/phantom-k/p/4080338.html
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