c# - 如何接受用户输入并打印出详细信息

Question

我正在开发一个考试应用程序（c# 控制台应用程序）

该应用程序要求用户输入其姓名，我希望该应用程序读取该用户的姓名并根据我存储在对象中的详细信息打印用户的详细信息

例如：如果用户名与此对象中的名称匹配：

students s3 = new students("Dee", "Scott", "Computing", 100m, 66.6m);

它如何打印此用户的详细信息。

我有一个单独的方法可以打印出用户的详细信息

public string gradeDetails {
        get { return FirstName + LastName + Course + FinalGrade; }
    }

我不知道如何将用户输入与相应的对象相匹配。

Answer 1

下面的示例将满足您的要求。如果您对我使用的代码有任何疑问，请不要犹豫。

class Student
{
    public string FirstName { get; set; }
    public string LastName { get; set; }
    public string Course { get; set; }
    public decimal FinalGrade { get; set; }

    public Student(string firstName,
                   string lastName,
                   string course)
    {
        FirstName = firstName;
        LastName = lastName;
        Course = course;
        FinalGrade = 0;
    }

    // This will first call the constructor above and then continue.
    public Student(string firstName,
                   string lastName,
                   string course,
                   decimal finalGrade) : this(firstName, lastName, course)
    {
        FinalGrade = finalGrade;
    }

    // By overriding ToString we can use Console.WriteLine(student) directly.
    public override string ToString()
    {
        return string.Format(@"FirstName: {0}, LastName: {1}, Course: {2}, FinalGrade: {3}",
                             FirstName,
                             LastName,
                             Course,
                             FinalGrade);
    }
}

class Program
{
    static void Main(string[] args)
    {
        // Create our students.
        List<Student> students = new List<Student>
                                 {
                                     new Student("John", "Test", "Computing"),
                                     new Student("Tim", "Test", "Computing", 8.25m)
                                 };

        string user = "";
        do
        {
            Console.Clear();
            Console.WriteLine("Please enter the name of the student:");
            user = Console.ReadLine();
            if (user.Equals("exit", StringComparison.OrdinalIgnoreCase))
                break;

            // Find the student or return null.
            Student student = students.FirstOrDefault(s => s.FirstName.Equals(user, StringComparison.OrdinalIgnoreCase));

            if (student != null)
            {
                Console.WriteLine("Student info:");
                Console.WriteLine(student);
            }
            else
            {
                Console.WriteLine("Student '" + user + "' not found.");
            }
            Console.WriteLine();

            // Wait until a key is pressed.
            Console.WriteLine("Press a key to continue..");
            Console.ReadKey(true);
        } while (true);
    }
}

Answer 2

您可以使用Console.Readline()方法

   public static void Main()
   {
      string line;
      Console.WriteLine("Enter one or more lines of text (press CTRL+Z to exit):");
      Console.WriteLine();
      do { 
         Console.Write("   ");
         line = Console.ReadLine();
         if (line != null) 
            Console.WriteLine("      " + line);
      } while (line != null);  

Answer 3

Console.ReadLine();
Console.WriteLine(); or Console.Write(); 

我不确定这是否是您要问的，但这些是读取和写入的调用。

不过，此信息很容易通过 Google 搜索。

Answer 4

做这样的事情：创建一个名为 Student 的类：

 public class Student
    {
        public string Fname { get; set; }
        public string LName { get; set; }
        public string Course { get; set; }
        public string FinalGrade { get; set; }

    }

然后这样做

class Program
    {

        static void Main(string[] args)
        {



            Console.WriteLine("Enter you name:");
            string name = Console.ReadLine();

            Console.WriteLine(gradeDetails(name));

            Console.ReadLine();
        }

        public static string gradeDetails(string name)
        {
             List<Student> students = new List<Student>()
                {
                    new Student{ Fname = "Scott",LName ="Dee",Course = "Computing", FinalGrade = "66.66m"},
                    new Student{Fname = "Joe",LName = "Don",Course = "Chemestry", FinalGrade = "80.77m"}
                };

            var student = students.SingleOrDefault(s => s.LName.ToLower() == name.ToLower());

            if (student!=null)
            {
                return student.Fname + "" + student.LName + "" + student.Course + "" + student.FinalGrade;
            }

            return string.Empty;
        }
    }

Answer 5

要求用户输入姓名并打印姓名

 using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    using System.Threading.Tasks;

    namespace stackoverflow1
    {
        class Program
        {
            static void Main(string[] args)
            {
                string name;

                Console.WriteLine("Enter your name : ");
                name = Console.ReadLine();

                Console.WriteLine("Hello " + name + " , Welcome to OOP!");

                Console.ReadKey();
            }
        }
    }