Question

我正在制作一个控制台程序，你必须说明课堂上有多少学生，以及你在这门课上做了多少次考试，所以它最后会给你一个学生名字。最终得分。 问题在于我无法进行最终的微积分=（sum / numberOfTests）。它只取你告诉程序的最后一个年级。这是代码。

namespace Repeat
{
    class Program
    {
        static void Main(string[] args)
        {
            //VARIABLES         
            float numberOfStudents;
            float numberOfTests;
            float average = 0;
            float grade;
            float sum = 0;
            string studentName;

            Console.WriteLine("Type the number of students");
            float.TryParse(Console.ReadLine(), out numberOfStudents);
            Console.WriteLine("Type the number of tests");
            float.TryParse(Console.ReadLine(), out numberOfTests);

            Console.WriteLine("");

            for (int i = 1; i <= numberOfStudents; i++)
            {
                Console.Write("Student name {0}: ", i);
                studentName = Console.ReadLine();

                for (int p = 1; p <= numberOfTests; p++)
                {
                    Console.Write("Test {0} grade: ", p);
                    float.TryParse(Console.ReadLine(), out grade);

                    average = sum / numberOfTests;
                }

                if (average < 7)
                {
                    Console.ForegroundColor = ConsoleColor.Red;
                    Console.WriteLine("Average: " + average);
                    Console.ResetColor();
                }
                else if (average >= 7)
                {
                    Console.ForegroundColor = ConsoleColor.Green;
                    Console.WriteLine("Average: " + average);
                    Console.ResetColor();
                }

                Console.WriteLine("");
            }

            ///END
            Console.ReadKey();
        }
    }
}

Answer 1

实际上你没有设置和更新sum值，所以总是0，像这样修复你的内部for循环

   sum = 0;
   for (int p = 1; p <= numberOfTests; p++)
   {
        Console.Write("Test {0} grade: ", p);
        float.TryParse(Console.ReadLine(), out grade);
        sum = sum + grade;
        average = sum / numberOfTests;
   }

C＃ - 保存输入的值

1 个答案: