如何檢測「>」和「<」在.NET控制檯應用程序

Question

考慮下面的代碼按鍵...

Dim KeyPress As ConsoleKeyInfo 
Do 
    KeyPress = Console.ReadKey(True) 
    If KeyPress.KeyChar = Convert.ToChar(">") Then 
     debug.WriteLine("Greater Than") 
    End If 
Loop While KeyPress.Key <> ConsoleKey.X 

我期望我按下鍵盤上的「>」鍵將產生調試輸出。但是，當我遍歷我的代碼時，按下「>」時IF語句的計算結果爲false。

使用Console.ReadKey（）時檢測「>」按鍵的正確方法是什麼？

Answer 1

嘗試一個實際的字符文字：If KeyPress.KeyChar = ">"c

Answer 2

請在你的代碼的簡單變化：

Dim keypress As ConsoleKeyInfo 
    Do 
     keypress = Console.ReadKey() 
     If keypress.KeyChar = Chr(62) Then 
      Console.WriteLine("Greater Than") 
     End If 
    Loop While keypress.Key <> ConsoleKey.X 

或者你可以使用像

Dim keypress As ConsoleKeyInfo 
    Do 
     keypress = Console.ReadKey() 
     If keypress.KeyChar = ">"C Then 
      Console.WriteLine("Greater Than") 
     End If 
    Loop While keypress.Key <> ConsoleKey.X