将.txt文件处理为数组，并操作数组数据

我想我应该发布我正在使用的整个程序。我已经基本完成了Main方法。我只需要创建3个类。文件例程、学生和学生。FileRoutine是我遇到的主要问题。它有2个公共类。LoadStudents和LoadAssignments。Load Students应该读取学生输入文件中的所有行，从每行创建一个学生对象，并返回一个包含学生对象数组的学生对象。Load Assignments应该读取作业输入文件中的所有行，并根据学生编号将每个作业与相应的学生关联起来。这两个文本文件看起来像这样:

Students.txt

122338  Weltzer Teresa
123123  Wang    Choo
123131  Adams   James
123132  Binkley Joshua
123139  Howard  Tyler
123160  King    Alma    

Assignments.txt

122338  HW1 93  0.05
123123  HW1 100 0.05
123131  HW1 90  0.05
123132  HW1 85  0.05
123139  HW1 89  0.05
123160  HW1 90  0.05
122338  Quiz1   94  0.08
123123  Quiz1   83  0.08
123131  Quiz1   93  0.08
123132  Quiz1   72  0.08
123139  Quiz1   0   0.08
123160  Quiz1   63  0.08
122338  HW2 70  0.05
123123  HW2 95  0.05
123131  HW2 100 0.05
123132  HW2 82  0.05
123139  HW2 73  0.05
123160  HW2 81  0.05
122338  HW3 87  0.05
123123  HW3 98  0.05
123131  HW3 87  0.05
123132  HW3 65  0.05
123139  HW3 55  0.05
123160  HW3 81  0.05
122338  Test1   86  0.15
123123  Test1   82  0.15
123131  Test1   92  0.15
123132  Test1   78  0.15
123139  Test1   67  0.15
123160  Test1   74  0.15

我真的只是想弄清楚如何处理这两个文件，并使他们做我想要的。我被告知使用

string[] lines = File.ReadAllLines(path)

读取行，

string[] data = line.Split(''t') 

分隔制表符分隔的行。

我不是要别人帮我写这个程序。只是需要一些帮助。朝正确方向的推动。我真的是通过观察来学习的，我从来没有见过任何人按照我的指示去做。如果你们有任何问题要问，请随时提问!

提前感谢。

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

namespace Project2
{
    class Program
    {
        static void Main()
        {
            // Change the path to match where you save the files.
            //const string STUDENT_FILE = @"C:'Temp'Students.txt";
            //const string ASSIGNMENT_FILE = @"C:'Temp'Assignments.txt";
            const string STUDENT_FILE = @"C:'Users'PleaseGod'Desktop'Project 2'Students.txt";
            const string ASSIGNMENT_FILE = @"C:'Users'PleaseGod'Desktop'Project 2'Assignments.txt";
            // First, load the student and assignment data from text files.
            Students students = FileRoutines.LoadStudents(STUDENT_FILE);
            FileRoutines.LoadAssignments(ASSIGNMENT_FILE, students);
            // Next, display information about the students and grades.
            Console.WriteLine("The students and their average are:");
            foreach (Student student in students.StudentList)
            {
                Console.WriteLine("{0,-20}'t{1:N2}", student.FullName, student.GetAverage());
            }
            DisplayStudentsByGrade(students, LetterGrade.A);
            DisplayStudentsByGrade(students, LetterGrade.B);
            DisplayStudentsByGrade(students, LetterGrade.C);
            DisplayStudentsByGrade(students, LetterGrade.D);
            DisplayStudentsByGrade(students, LetterGrade.F);
            Student[] studentsWithHighestAverage = students.GetStudentsWithHighestAverage();
            Console.WriteLine("'nThe students with the highest average are:");
            foreach (Student student in studentsWithHighestAverage)
            {
                Console.WriteLine("{0,-20}'t{1:N2}", student.FullName, student.GetAverage());
            }
            Console.WriteLine("'nThe class average is: {0:N2}", students.GetClassAverage());
            Console.WriteLine("'nThe class average on HW2 is: {0:N2}", students.GetAverageGradeOnAssignment("HW2"));
            Console.ReadLine();
        }
        private static void DisplayStudentsByGrade(Students students, LetterGrade letterGrade)
        {
            Student[] studentList = students.GetStudentsByGrade(letterGrade);
            Console.WriteLine("'nThe following students have a grade of {0}:", letterGrade);
            if (studentList.Length > 0)
            {
                foreach (Student student in studentList)
                {
                    Console.WriteLine("{0,-20}'t{1:N2}", student.FullName, student.GetAverage());
                }
            }
            else
            {
                Console.WriteLine("<none>");
            }
        }
    }
}

public List<Student> LoadStudents(string STUDENT_FILE)
{
   var parseQuery = //read all lines from a file
                 from line in File.ReadAllLines(STUDENT_FILE)
                 //split every line on Tab delimiter
                 let split = line.Split(new[] {''t'})
                 //create new Student object from string array created by split for every line
                 select new Student()
                 {
                   ID = split[0],
                   FirstName = split[1],
                   LastName = split[2]
                 };
     //execute parseQuery, your student objects are now in List<Student>
      var studentList = parseQuery.ToList();
      return studentList;
 }

class Student
{
    public string mNumber { get; set; }
    public string mFirstName { get; set; }
    public string mLastName { get; set; }
    public Student(string nr, string fName, string lName)
    {
        mNumber = nr;
        mFirstName = fName;
        mLastName = lName;
    }
}

foreach (string val in data)
{
    string[] valArr = val.Split(' ');
    Student st = new Student(valArr[0], valArr[1], valArr[2]);
}