C# Challenge 12 - 引導式專案 - 開發 Foreach 和 if-elseif-else 結構，以在 C# 中處理陣列資料
發表C# Challenge3 分鐘讀完 (大約413個字)

C# Challenge 12 - 引導式專案 - 開發 Foreach 和 if-elseif-else 結構，以在 C# 中處理陣列資料

Microsoft 2023 年所提供的 C# codecamp 基礎課程，總共有 38 個單元，完成後就可以獲得 Certification ，今天要來跟大家分享的是第 12 單元的內容。

本節內容

學生評分應用程式

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// initialize variables - graded assignments
int examAssignments = 5;

int[] sophiaScores = new int[] { 90, 86, 87, 98, 100, 94, 90 };
int[] andrewScores = new int[] { 92, 89, 81, 96, 90, 89 };
int[] emmaScores = new int[] { 90, 85, 87, 98, 68, 89, 89, 89 };
int[] loganScores = new int[] { 90, 95, 87, 88, 96, 96 };

// Student names
string[] studentNames = new string[] { "Sophia", "Andrew", "Emma", "Logan" };

int[] studentScores = new int[10];

string currentStudentLetterGrade = "";

// Write the Report Header to the console
Console.WriteLine("Student\t\tGrade\n");

foreach (string name in studentNames)
{
    string currentStudent = name;

    if (currentStudent == "Sophia")
       studentScores = sophiaScores;

    else if (currentStudent == "Andrew")
        studentScores = andrewScores;

    else if (currentStudent == "Emma")
        studentScores = emmaScores;

    else if (currentStudent == "Logan")
        studentScores = loganScores;

    // initialize/reset the sum of scored assignments
    int sumAssignmentScores = 0;

    // initialize/reset the calculated average of exam + extra credit scores
    decimal currentStudentGrade = 0;

    // initialize/reset a counter for the number of assignment 
    int gradedAssignments = 0;

    // loop through the scores array and complete calculations for currentStudent
    foreach (int score in studentScores)
    {
        // increment the assignment counter
        gradedAssignments += 1;

        if (gradedAssignments <= examAssignments)
            // add the exam score to the sum
            sumAssignmentScores += score;

        else
            // add the extra credit points to the sum - bonus points equal to 10% of an exam score
            sumAssignmentScores += score / 10;
    }

    currentStudentGrade = (decimal)(sumAssignmentScores) / examAssignments;

    if (currentStudentGrade >= 97)
        currentStudentLetterGrade = "A+";

    else if (currentStudentGrade >= 93)
        currentStudentLetterGrade = "A";

    else if (currentStudentGrade >= 90)
        currentStudentLetterGrade = "A-";

    else if (currentStudentGrade >= 87)
        currentStudentLetterGrade = "B+";

    else if (currentStudentGrade >= 83)
        currentStudentLetterGrade = "B";

    else if (currentStudentGrade >= 80)
        currentStudentLetterGrade = "B-";

    else if (currentStudentGrade >= 77)
        currentStudentLetterGrade = "C+";

    else if (currentStudentGrade >= 73)
        currentStudentLetterGrade = "C";

    else if (currentStudentGrade >= 70)
        currentStudentLetterGrade = "C-";

    else if (currentStudentGrade >= 67)
        currentStudentLetterGrade = "D+";

    else if (currentStudentGrade >= 63)
        currentStudentLetterGrade = "D";

    else if (currentStudentGrade >= 60)
        currentStudentLetterGrade = "D-";

    else
        currentStudentLetterGrade = "F";

    //Console.WriteLine("Student\t\tGrade\tLetter Grade\n");
    Console.WriteLine($"{currentStudent}\t\t{currentStudentGrade}\t{currentStudentLetterGrade}");
}

// required for running in VS Code (keeps the Output windows open to view results)
Console.WriteLine("\n\rPress the Enter key to continue");
Console.ReadLine();

重點整理

也是一個 foreach 的練習專案，內容大同小異不過有結合上一單元的一些知識，一樣直接把答案貼上來給大家參考。
那我們下次見ʘ‿ʘ

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