希望在文本文件中将逗号分隔的值添加到结构的成员 [英] Looking to add comma delimited values in a text file to members of a struct

问题描述

我在这里有一个文本文件，其中包含两个值，一个名称和一个分数. 我有一个具有4个成员的学生结构，如下所示.

I have a text file here with two values, a name and a score. I have a student struct that has 4 members which are seen below.

我希望将文本文件中的值添加到结构中的相应成员(以逗号分隔).

I am looking to add the values in the text file to the corresponding members in the struct separating by comma.

students.txt文件的前五行；

First five rows of the students.txt file;

Nubia,Dufrene,70
Louisa,Trippe,49
Aline,Deniz,34
Shery,Munk,63
Angila,Ping,89

我当前的代码；

struct studentType {
    string studentFName;
    string studentLName;
    int testScore;
    char grade;
};


int main()
{
    vector<studentType> studentVector;
    studentType student;


    ifstream inFile("students.txt");

    while (getline(inFile, student.studentFName, ',' )) {
        cout << student.studentFName << endl;
    }



        printStudents(studentVector);
}


void printStudents(vector<studentType>& passedVect) {

    for (studentType element : passedVect) {
        cout << element.studentFName << " " << element.studentLName << "\tGrade: " << element.testScore << " (" << element.grade << ")" << endl;
    }

}

FIX 我已将for循环替换为while循环. 我还必须将结构从int更改为string才能与getline一起使用.简单的convertString函数使用std :: stoi将其转换回最初计划的int值.

The FIX I've replaced the while loop with a for loop. I also had to change the struct from int to string for it to work with getline. The simple convertString function uses std::stoi to convert it back to an int as originally planned.

int main()
{
    vector<studentType> studentVector;


    studentType student;

    ifstream inFile("students.txt");

    for (studentType i;
        getline(inFile, i.studentFName, ',')
        && getline(inFile, i.studentLName, ',')
        && getline(inFile, i.testScore)
        ; ) 
    {

        int testScore = convertString(i.testScore);
        i.grade = assignGrade(testScore);

        studentVector.push_back(i);
    }
    printStudents(studentVector);
}


int convertString(string number) {

    return stoi(number);
}

输出

Struct Exercises!
Nubia Dufrene           Grade: 70 (B)
Louisa Trippe           Grade: 49 (D)
Aline Deniz             Grade: 34 (F)
Shery Munk              Grade: 63 (C)
Angila Ping             Grade: 89 (A)
Laila Hollmann          Grade: 10 (F)
Sherrill Piller         Grade: 47 (D)
Minna Dimitri           Grade: 26 (F)
Song Kornreich          Grade: 97 (A)
Frank Dammann           Grade: 36 (F)
Isaac Abee              Grade: 24 (F)
Tiffaney Lukach         Grade: 75 (B)
Carmelina Sink          Grade: 85 (A)
Matthew Benes           Grade: 34 (F)
Fleter Aichele          Grade: 78 (B)
Sergio Ewan             Grade: 56 (C)
Izetta Armes            Grade: 42 (D)
Olen Tee                Grade: 89 (A)
Leona Mozee             Grade: 54 (D)
Britta Pegrast          Grade: 34 (F)

再次感谢！

推荐答案

struct studentType {
    string studentFName;
    string studentLName;
    string testScore;
    char grade;
};

void printStudents(vector<studentType>& passedVect );

int main()
{
    vector<studentType> studentVector;
    studentType student;


    ifstream inFile("students.txt");

    while (getline(inFile, student.studentFName, ',' ) 
        && getline(inFile, student.studentLName, ',') 
        && getline(inFile, student.testScore) ) {
        cout << student.studentFName << " " 
             << student.studentLName << " " 
             << student.testScore << endl;
    }
}

我只是将它们收成空，并将testScore更改为字符串

I just concated them and changed the testScore to a string

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