C#寫入/讀出文本文件
{
StreamWriter rw = File.CreateText(Server.MapPath(".")+"//myText.txt");
rw.WriteLine("追逐理想");
rw.WriteLine("kzlll");
rw.WriteLine(".NET筆記");
rw.Flush();
rw.Close();
}
打開文本文件
StringBuilder output = new StringBuilder();
string rl;
while((rl=sr.ReadLine())!=null)
{
output.Append(rl+"<br>");
}
lblFile.Text = output.ToString();
sr.Close();
C#追加文件
sw.WriteLine("追逐理想");
sw.WriteLine("kzlll");
sw.WriteLine(".NET筆記");
sw.Flush();
sw.Close();
C#拷貝文件
OrignFile = Server.MapPath(".")+"//myText.txt";
NewFile = Server.MapPath(".")+"//myTextCopy.txt";
File.Copy(OrignFile,NewFile,true);
C#刪除文件
File.Delete(delFile);
C#移動文件
OrignFile = Server.MapPath(".")+"//myText.txt";
NewFile = Server.MapPath(".")+"//myTextCopy.txt";
File.Move(OrignFile,NewFile);
C#創建目錄
DirectoryInfo d=Directory.CreateDirectory("c://sixAge");
// d1指向c:/sixAge/sixAge1
DirectoryInfo d1=d.CreateSubdirectory("sixAge1");
// d2指向c:/sixAge/sixAge1/sixAge1_1
DirectoryInfo d2=d1.CreateSubdirectory("sixAge1_1");
// 將當前目錄設爲c:/sixAge
Directory.SetCurrentDirectory("c://sixAge");
// 創建目錄c:/sixAge/sixAge2
Directory.CreateDirectory("sixAge2");
// 創建目錄c:/sixAge/sixAge2/sixAge2_1
Directory.CreateDirectory("sixAge2//sixAge2_1");
遞歸刪除文件夾及文件
<%@ Import namespace="System.IO"%>
<Script runat=server>
public void DeleteFolder(string dir)
{
if (Directory.Exists(dir)) //如果存在這個文件夾刪除之
{
foreach(string d in Directory.GetFileSystemEntries(dir))
{
if(File.Exists(d))
File.Delete(d); //直接刪除其中的文件
else
DeleteFolder(d); //遞歸刪除子文件夾
}
Directory.Delete(dir); //刪除已空文件夾
Response.Write(dir+" 文件夾刪除成功");
}
else
Response.Write(dir+" 該文件夾不存在"); //如果文件夾不存在則提示
}
protected void Page_Load (Object sender ,EventArgs e)
{
string Dir="D://gbook//11";
DeleteFolder(Dir); //調用函數刪除文件夾
}
</Script>