C#函数在里面，而不会循环

Question

大家好，我有这个代码

StreamReader reader = new StreamReader("C:\Users\lorenzov\Desktop\gi_pulito_neg.txt");
string line = reader.ReadLine();
string app = "";
int i = 0;
while (line != null)
{
   i++;
   line = reader.ReadLine();
   if (line != null)
   {
       int lunghezza = line.Length;
   }
   Console.WriteLine(i);
   System.Threading.Thread.Sleep(800);
   string ris= traduttore.traduci(targetLanguage, line);
   // Console.WriteLine(line);
   // Console.WriteLine(ris);
   // Console.Read();
   // app = app + ris;
   // System.Threading.Thread.Sleep(50);
   File.AppendAllText(@"C:UserslorenzovDesktopgi_tradotto_neg.txt", ris + Environment.NewLine);
}

事实是我有一个 txt 文件，我想用这个函数翻译 traduci(targetLanguage，line(，函数没问题，我想将每一行翻译成另一个文件，而循环时函数在第一次循环时阻塞，如果我在按回车键时插入 consonle.read(( 函数工作...我能做什么吗？谢谢大家！

Answer 1

你的代码很混乱。我建议使用以下方法来循环StreamReader行：

        using (StreamReader reader = new StreamReader("C:\Users\lorenzov\Desktop\gi_pulito_neg.txt"))
        {
            string line;
            while (!reader.EndOfStream)
            {
                line = reader.ReadLine();
                // ... process the line
            }
        }

Answer 2

如果 ReadLine 返回 null，则代码将中断。 更好的结构：

StreamReader reader = new StreamReader("C:\Users\lorenzov\Desktop\gi_pulito_neg.txt");
string line;
string app = "";
int i = 0;
while ((line = reader.ReadLine()) != null)
{
   i++;
   int lunghezza = line.Length;
   Console.WriteLine(i);
   System.Threading.Thread.Sleep(800);
   string ris= traduttore.traduci(targetLanguage, line);
   // Console.WriteLine(line);
   // Console.WriteLine(ris);
   // Console.Read();
   // app = app + ris;
   // System.Threading.Thread.Sleep(50);
   File.AppendAllText(@"C:UserslorenzovDesktopgi_tradotto_neg.txt", ris + Environment.NewLine);
}

Answer 3

代码将跳过第一行，因为您在使用拳头之前使用ReadLine()两次。

您可以将代码重构为

using (StreamReader reader = new StreamReader(@"C:UserslorenzovDesktopgi_pulito_neg.txt"))
using (StreamWriter writer = new StreamWriter(@"C:UserslorenzovDesktopgi_tradotto_neg.txt"))
{
    string line = reader.ReadLine();
    while(line != null)
    {
       System.Threading.Thread.Sleep(800);
       string ris = traduttore.traduci(targetLanguage, line);
       writer.WriteLine(ris);
       line = reader.ReadLine();
    }
}