似乎無法解決未分配的局部變量

Question

所以我一直在爲一個項目編寫這個程序，一切似乎都很好。我一直在檢查我的工作和我的導師代碼，但我沒有代碼的前40行的副本請與我想不出是什麼原因導致這個問題

static void Main(string[] args) 
    { 
     int count = 0; 
     string[] names = new string[MAX_SIZE]; 
     int[] scores = new int[MAX_SIZE]; 
     string[] splitInput = new string[MAX_SIZE]; 

     int sum = 0; 
     int minScore = 0; 
     int maxScore = 0; 

     string input; 

     string minName; 
     string maxName; 

     Console.WriteLine("===============Saturday Night Coders================"); 
     Console.WriteLine("===============Bowling Score Program================"); 

     for (int i = 0; i < MAX_SIZE; i++) 
     { 




      Console.WriteLine("\n Please Enter a name and a score separated by a space"); 
      Console.WriteLine("Enter a blank line when finished"); 

      input = Console.ReadLine(); 

      if (input == "") 

      { 
       Console.WriteLine("===========INPUT COMPLETE========="); 
       break; 
      } 





      splitInput = input.Split(); 

      string name = splitInput[0]; 
      int score = int.Parse(splitInput[1]); 

      names[i] = name; 
      scores[i] = score; 
      sum += score; 




      if (minScore > score) 
      { 
       minScore = score; 
       minName = name; 
      } 
      if (maxScore < score) 
      { 
       maxScore = score; 
       maxName = name; 
      } 

      count = i + 1; 
     } 

     double average = sum/count; 
     Console.WriteLine("Here are the scores for this game"); 
     PrintScores(names, scores, count); 
     Console.WriteLine("Congratulations {0}, your score of {1} was the highest", maxName, maxScore); 
     Console.WriteLine("{0} , your score of {1} was the lowest, Maybe you should find a new hobby", minName, minScore); 
     Console.WriteLine("\n The team average was {0:f2}", average); 
     Console.WriteLine("Press any key to continue..."); 
     Console.ReadKey(); 
    } 
    static void PrintScores(string[] names, int[] scores, int count) 
    { 
     for (int i = 0; i < count; i++) 
     { 
      Console.Write("{0} \t {1}", names[i], scores[i]); 
      if (scores[i] == MAX_SCORE) 
      { 
       Console.WriteLine("*"); 
      } 
      else 
      { 
       Console.WriteLine(""); 
      } 
      Console.WriteLine(); 
     } 
    } 



} 

問題我在這裏是與這段代碼

if (minScore > score) 
      { 
       minScore = score; 
       minName = name; 
      } 
      if (maxScore < score) 
      { 
       maxScore = score; 
       maxName = name; 
      } 

      count = i + 1; 
     } 

     double average = sum/count; 
     Console.WriteLine("Here are the scores for this game"); 
     PrintScores(names, scores, count); 
     Console.WriteLine("Congratulations {0}, your score of {1} was the highest", maxName, maxScore); 
     Console.WriteLine("{0} , your score of {1} was the lowest, Maybe you should find a new hobby", minName, minScore); 

未分配的本地變量使用錯誤是與minName和maxName值。如果我用minName =「」聲明它們; maxName =「」;該代碼將編譯，但那麼得分最低的人的名字將是「」，得分將爲0.這一切似乎工作，直到我添加PrintScores方法。任何幫助表示讚賞，我一直襬弄它已經有一個多小時的時間了，但仍然無法找出解決方案

Answer 1

您在for循環之外聲明minName和maxName。你只在for循環內部賦值它們...問題：如果for循環沒有運行，變量不會被賦值。因此，編譯器禁止使用它們。

解決方案：只需用有意義的值初始化它們，如string.Empty。