刪除方法不刪除

Question

我正在創建一個包含三個數組的程序：一個用於姓名，一個用於得分，一個用於玩家號碼。現在，我得到了所有數組，一切都完成了，但對於一些我的進程刪除方法不會從數組中刪除項目。我知道，我問過一個類似的問題，但我似乎無法弄清楚，爲什麼它不會刪除正確

任何幫助，將不勝感激請和謝謝

static Int32[] ProcessDelete(Int32[] playerNumbers, ref Int32 playerCount, 
    String[] playerLastName, Int32[] playerPoints) 
{ 
    Int32[] newArray = new Int32[playerNumbers.Length - 1]; 
    String[] newArray2 = new String[playerLastName.Length - 1]; 
    Int32[] newArray3 = new Int32[playerPoints.Length - 1]; 

    int index = 0; 
    int index2 = 0; 
    int index3 = 0; 
    int j = 0; 
    int k = 0; 
    int t = 0; 

    while (index < playerNumbers.Length) 
    { 
     if (index != playerCount) 
     { 
      newArray[j] = playerNumbers[index]; 
      j++; 
     } 

     index++; 
    } 

    while (index2 < playerLastName.Length) 
    { 
     if (index2 != playerCount) 
     { 
      newArray2[k] = playerLastName[index2]; 
      k++; 
     } 

     index2++; 
    } 

    while (index3 < playerLastName.Length) 
    { 
     if (index3 != playerCount) 
     { 
      newArray3[t] = playerPoints[index3]; 
      t++; 
     } 

     index3++; 
    } 

    return newArray;   
} 

static void DeletePlayer(Int32[] playerNumbers, String[] playerLastName, 
    Int32[] playerPoints, ref Int32 playerCount, Int32 MAXPLAYERS) 
{ 
    int player; // Player number to delete 
    int playerindex;//index of the player number in Array 

    if (playerCount < MAXPLAYERS) 
    { 
     player = 
      GetPositiveInteger("\nDelete Player: please enter the player's number"); 
     playerindex = GetPlayerIndex(player, playerNumbers, playerCount); 

     if (playerindex != -1) 
     { 
      Console.WriteLine(
       "\nDelete Player: Number - {0}, Name - {1}, Points - {2}", 
       playerNumbers[playerindex], playerLastName[playerindex], 
       playerPoints[playerindex]); 

      Console.WriteLine("Succesfully Deleted"); 
      Console.WriteLine(); 
      ProcessDelete(playerNumbers, ref playerCount, playerLastName, 
       playerPoints); 
     } 
     else 
     { 
      Console.WriteLine("\nDelete Player: player not found"); 
     } 
    } 
    else 
    { 
     Console.WriteLine("\nDelete Player: the roster is empty"); 
    }    
} 

Answer 1

的ProcessDelete方法構造新陣列newArray，newArray2和newArray3。其中，它只返回newArray，所以newArray2和newArray3被扔掉。當DeletePlayer調用ProcessDelete時，它忽略了返回值，所以newArray也被丟棄，並且在ProcessDelete正文中執行的所有工作都被浪費了。