csharp 如何在try结构中使用finally语句以确保执行某些代码的示例。从计算机编程基础知识

Posted 2021-05-12

static void Main()
{
  //string fileName = "WrongTextFile.txt";
  //ReadFile(fileName);
}

static void ReadFile(string fileName)
{
  TextReader reader = new StreamReader(fileName);
  try
  {
    string line = reader.ReadLine();
    Console.WriteLine(line);
  }
  finally
  {
    reader.Close();
  }
}