C#如何使用Streamwriter打开一个本地文件

C#通过Streamwriter打开一个本地文件

using System;
using System.IO;
 
public class KtoD1 {
  public static void Main() {
    string str;
    StreamWriter fstr_out;
 
    // Open the file directly using StreamWriter.
    try {
      fstr_out = new StreamWriter("test.txt");
    }
    catch(IOException exc) {
      Console.WriteLine(exc.Message + "Cannot open file.");
      return ;
    }
 
    Console.WriteLine("Enter text ('stop' to quit).");
    do {
      Console.Write(": ");
      str = Console.ReadLine();
 
      if(str != "stop") {
        str = str + "\r\n"; // add newline
        try {
          fstr_out.Write(str);
        } catch(IOException exc) {
          Console.WriteLine(exc.Message + "File Error");
          return ;
        }
      }
    } while(str != "stop");
 
    fstr_out.Close();
  }
}