[英]Outputting names and test scores from a CSV File C#
I have a project which I have created that reads from a CSV File which contains names and scores of students in a class.我创建了一个项目,该项目从 CSV 文件中读取,该文件包含 class 中学生的姓名和分数。 The program is supposed to read from the CSV File and then output all of the names.
该程序应该从 CSV 文件中读取,然后从 output 中读取所有名称。 I have created the program and it works, it's just that I can only output the name and scores of 1 student in the class when it is meant to be for 12. If anyone could show me where I need to change my code in order to get the output for the whole class it would be very much appreciated.
我已经创建了该程序并且它可以工作,只是我只能 output class 中的 1 名学生的姓名和分数,当它是 12 时。如果有人能告诉我我需要在哪里更改我的代码以便获得整个 class 的 output 将不胜感激。 Thanks.
谢谢。
public static void Main(string[] args)
{
string[] names = loadNames();
int[] marks = loadMarks();
outputMarks(names, marks);
Console.ReadKey();
}
static string[] loadNames()
{
string filename = @"testMarks.csv";
string[] tempData;
string[] tempNames = new string[2];
using (StreamReader currentfile = new StreamReader(filename))
{
tempData = currentfile.ReadLine().Split(',');
}
tempNames[0] = tempData[0];
tempNames[1] = tempData[1];
return tempNames;
}
static int[] loadMarks()
{
string filename = @"testMarks.csv";
string[] tempData;
using (StreamReader currentfile = new StreamReader(filename))
{
tempData = currentfile.ReadLine().Split(',');
}
int[] tempMarks = new int[tempData.Length - 2];
for (int i = 2; i < tempData.Length; i++)
{
tempMarks[i - 2] = int.Parse(tempData[i]);
}
return tempMarks;
}
static void outputMarks(string[] names, int[] marks)
{
for (int i = 0; i < 2; i++)
{
Console.Write(names[i] + "\t");
}
for (int i = 0; i < 6; i++)
{
Console.Write(marks[i] + "\t");
}
Console.WriteLine();
}
}
} }
Assuming the content of the testMarks.csv is like this (without empty lines ofcourse):假设 testMarks.csv 的内容是这样的(当然没有空行):
John,Adams,100,79,77,83,55,37约翰,亚当斯,100,79,77,83,55,37
Sarah,Baxter,99,66,78,57,62,70莎拉,巴克斯特,99,66,78,57,62,70
Jane,Clague,100,100,61,95,59,38简,克拉格,100,100,61,95,59,38
I would do this like:我会这样做:
public static void Main(string[] args)
{
var allStudentsAndNotes = LoadStudentsAndNotes();
Console.ReadKey();
}
private List<Student> LoadStudentsAndNotes()
{
string pth = @"C:\MyDesktopPath\testMarks.csv";
var lines = System.IO.File.ReadAllLines(pth);
var studentList = new List<Student>();
Student student;
foreach (var line in lines)
{
student = new Student();
var datas = line.Split(new string[] { "," }, StringSplitOptions.RemoveEmptyEntries);
student.FirstName = datas[0];
student.LastName = datas[1];
for (int i = 2; i < datas.Length; i++)
{
student.Notes.Add(int.Parse(datas[i]));
}
studentList.Add(student);
}
return studentList;
}
A little class一点class
class Student
{
public Student()
{
Notes = new List<int>();
}
public string FirstName { get; set; }
public string LastName { get; set; }
public List<int> Notes { get; set; }
}
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