文件操作详解编程语言

BufferedReader infile = new BufferedReader(new FileReader("path and file_name ")); String str; while ((str = in.readLine()) != null) process(str); infile.close(); catch (IOException e) // Exceptions ignored. // Java example code to writing to a file. try BufferedWriter outfile = new BufferedWriter(new FileWriter("path and file_name ")); outfile.write("a string"); outfile.close(); catch (IOException e) { }

 

// sample C# code for basic file I/O operations 

// exceptions ignored for code simplicity 

class TestFileIO 

 static void Main() 

 string fileName = "test.txt"; // a sample file name 

 // Delete the file if it exists. 

 if (System.IO.File.Exists(fileName)) 

 System.IO.File.Delete(fileName); 

 // Create the file. 

 using (System.IO.FileStream fs = System.IO.File.Create(fileName, 1024)) 

 // Add some information to the file. 

 byte[] info = new System.Text.UTF8Encoding(true).GetBytes("This is some text in the file."); 

 fs.Write(info, 0, info.Length); 

 // Open the file and read it back. 

 using (System.IO.StreamReader sr = System.IO.File.OpenText(fileName)) 

 string s = ""; 

 while ((s = sr.ReadLine()) != null) 

 System.Console.WriteLine(s); 

}

 

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