使用Array.Sort（）和Array.Reverse（）排序陣列升序和降序

Question

我有一個問題，按字母順序顯示名稱，反之亦然。當我使用Array.Sort（）時，它首先顯示最後一個條目，然後按字母順序排序。任何幫助，建議將不勝感激。下面是我的代碼：

static void Main(string[] args) 
    { 
     string [] lastName = new string [100]; 
     string inValue = "", moreData = ""; 
     int nameCnt = 0; 



     while (moreData != "N") 
     { 
      lastName[nameCnt] = Convert.ToString(inValue); 
      nameCnt++; 
      Console.Write("Enter Last Name: "); 
      inValue = Console.ReadLine(); 
      Console.Write("Keep going Y/N? "); 
      moreData = Console.ReadLine(); 
      moreData = moreData.ToUpper(); 
     } 
     Console.WriteLine(); 
     Console.WriteLine(nameCnt + " Last Name(s) Entered"); 

     Console.WriteLine(); 
     Console.WriteLine("Names in Ascending Order\n"); 


      Array.Sort(lastName); 
      foreach (string name in lastName) 
      { 

       lastName[nameCnt] = Convert.ToString(inValue); 
       Console.Write(name); 
      } 

      Console.WriteLine(); 
      Console.WriteLine("Names in Ascending Order\n"); 


      Array.Reverse(lastName); 
      foreach (string name in lastName) 
      { 
       lastName[nameCnt] = Convert.ToString(inValue); 
       Console.Write(name); 
      } 

     Console.ReadLine(); 
    } 

Answer 1

的誤解是，如果你在你的安排的4位置進入最後四個名字在你的foreach 可變nameCnt = 4你輸入你在變inValue

 foreach (string name in lastName) 
     { 
      /* Asign position 4 to array inValue input 
      lastName[nameCnt] = Convert.ToString(inValue); */ 
      Console.WriteLine(name); 
     } 

呆的最後一個條目

刪除該行並訂購你的第一個，同時也是

while (moreData != "N") 
     { 
      Console.Write("Enter Last Name: "); 
      inValue = Console.ReadLine(); 
      lastName[nameCnt] = Convert.ToString(inValue); 
      nameCnt++; 
      Console.Write("Keep going Y/N? "); 
      moreData = Console.ReadLine().ToUpper(); 
     }