ReadKey需要輸入兩次

Question

public static void readkey() 
{ 
    ConsoleKeyInfo input = Console.ReadKey(); 

    switch(input.Key) 
    { 
     case ConsoleKey.D9: 
      Console.Clear(); 
      Console.WriteLine("U heeft het programma succesvol afgesloten!"); 
      Console.Read(); 
      Environment.Exit(0); 
     break; 

     case ConsoleKey.D1: 
      overzichtmp(); 
     break; 

     case ConsoleKey.D2: 
      overzichtvr(); 
     break; 

     default: 
     { 
      Console.Clear(); 
      Console.WriteLine("Voer een geldig nummer in!"); 
      Console.Read(); 
      showmenu(); 
      break; 
     } 
    } 
} 

如果我第一次按一個鍵，它閃爍的方法，直接回來，第二次它只是開始正常任何想法如何解決這個問題？

Answer 1

我不確定下面是你正在尋找的，但它設置了程序循環來調用你的讀寫鍵，並消除第二個Console.Read並用睡眠等待來替換它。

static void Main(string[] args) 
{ 
    while (true) 
    { 
     readkey(); 
    } 
} 

public static void readkey() 
{ 
    ConsoleKeyInfo input = Console.ReadKey(); 

    switch(input.Key) 
    { 
     case ConsoleKey.D9: 
      Console.Clear(); 
      Console.WriteLine("U heeft het programma succesvol afgesloten!"); 
      //You might want to wait: System.Threading.Thread.Sleep(5000); 
      Environment.Exit(0); 
     break; 

     case ConsoleKey.D1: 
      overzichtmp(); 
     break; 

     case ConsoleKey.D2: 
      overzichtvr(); 
     break; 

     default: 
     { 
      Console.Clear(); 
      Console.WriteLine("Voer een geldig nummer in!"); 
      // possibly add the wait here as well 
      showmenu(); 
      break; 
     } 
    } 
}