如何將方法中的字符串解析（使用 TryParse）到全局 int

Question

我正在努力將用戶輸入解析為全局 integer

當我在這樣聲明后給全局 scoreString 一個值時--- static string scoreString = "55"; - - 有用

    static string scoreString = "55";
    static bool scoreBool = int.TryParse(scoreString, out score);
    static int score;

    static void Main(string[] args)
    {
        Console.WriteLine("====STUDENT AVERAGE CHECKER====");
        AverageMaker();

        if (scoreBool)
        {
            Console.WriteLine("Parsing good");
            Console.WriteLine(score);
        }
        else
        {
            Console.WriteLine("Parsing fail");
            Console.WriteLine(score);
        }

        Console.Read();
    }

    public static void AverageMaker()
    {
        Console.WriteLine("-----Enter score---");
        scoreString = Console.ReadLine();
    }

Answer 1

您正在解析Main() scoreString之外的 scoreString。 從Console讀取字符串后，在AverageMaker() function 中解析它

就像是，

public static void AverageMaker()
{
    Console.WriteLine("-----Enter score---");
    scoreString = Console.ReadLine();
    scoreBool = int.TryParse(scoreString, out score); //This was missing
}

Answer 2

作為 readline 的結果刪除換行符： scoreString = scoreString.Replace("\r\n", string.Empty); 並嘗試解析