所以我一直在为一个项目编写这个程序,一切似乎都很好。我一直在用我的教师代码检查我的工作,但我没有要检查的前40行代码的副本,我无法弄清楚导致这个问题的原因
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();
}
}
}
我遇到的问题是这里的代码部分
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);
未分配使用局部变量错误是使用minName和maxName值。如果我用minName =“”声明它们; maxName =“”;代码将编译,但然后得分最低的人的名称将是“”,分数将为0.这一切似乎都有效,直到我添加PrintScores方法。任何帮助表示赞赏,我现在已经花了一个多小时的时间摆弄它,似乎仍然无法找到解决方案
答案 0 :(得分:2)
您在for循环之外声明minName
和maxName
。您只在for循环内分配它们...问题:如果for循环没有运行,则不分配变量。因此编译器禁止使用它们。
解决方案:只需使用有意义的值初始化它们,例如string.Empty
。