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我正在尝试使用 struct/union 实现将文本文件读入 cstring 数组。首先，这是我的文本文件的样子：

F South Korea
Male Psy Park Jae Sang
31 - 12 - 1977
3 CSCI114 55 CSCI103 44 GangNam 100

S Female Super Junior
5 - 8 - 1978 
2 CSCI114 60 CSCI103 80

F People Republic Of China
Unknown James Bond
11 - 12 - 1976
4 CSCI114 54 CSCI124 66 CSCI007 99 CSCI123 28

现在，忽略明显的亚洲流行歌星引用，我的讲师决定用这个例子来填充 - 我希望能够阅读 CSCI 之前的第一个数字，这是数字或课程及其各自的成绩，并自动（循环）它文本文件中的所有 3 名（或更多）学生。

我还没有为我在这里试图描述的内容编写任何代码，但这是我到目前为止所拥有的。

#include <iostream>
#include <fstream>
#include <cstdlib>
#include <ctime>
using namespace std;

const int MAX = 80;

struct Birthday
{
    char day[MAX];
    char month[MAX];
    char year[MAX];
};

struct Local
{
    char name[MAX];
    char gender[MAX];
    Birthday bd;
    char subjects [MAX];
};

struct Foreigner
{
    char name[MAX];
    char nationality[MAX];
    char gender[MAX];
    Birthday bd;
    char subjects [MAX];
};

union Student
{
    Local     localStudent;
    Foreigner foreignStudent;
};

enum CountryType {S, F};

struct UowStudents
{
    CountryType ct;
    Student st;
};

int fileToArray (fstream& afile, char fileName [], UowStudents& x);

int main ()
{
    srand(time_t(NULL));

    fstream afile;
    UowStudents x [MAX];
    char fileName[MAX];
    cout << "Enter filename: ";
    cin >> fileName;
    int size = fileToArray (afile, fileName, *x);


}

int fileToArray (fstream& afile, char fileName [], UowStudents& x)
{
    afile.open(fileName, ios::in);

    if (!afile)
    {
        cout << fileName << "could not be opened for read" << endl;
        exit (-1);
    }
    //file to array.
    char locale;
    char dateJunk;
    afile >> locale;
    afile.getline(x.st.foreignStudent.nationality, MAX);
    afile >> x.st.foreignStudent.gender;
    afile.getline(x.st.foreignStudent.name, MAX);
    afile >> x.st.foreignStudent.bd.day;
    afile >> dateJunk;
    afile >> x.st.foreignStudent.bd.month;
    afile >> dateJunk;
    afile >> x.st.foreignStudent.bd.year;


    //Tests my cstring arrays to see everything is copied in correctly.
    cout << locale << " " << x.st.foreignStudent.nationality;
    cout << endl;
    cout << x.st.foreignStudent.gender;
    cout << x.st.foreignStudent.name;
    cout << endl;
    cout << x.st.foreignStudent.bd.day << " - ";
    cout << x.st.foreignStudent.bd.month << " - ";
    cout << x.st.foreignStudent.bd.year;
    return 0;
}

这是我处理完所有数组信息的最终文本文件，如下所示：

http://i.imgur.com/HSLvp.jpg

任何帮助表示赞赏，谢谢。

4

1 回答 1

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您可以通过这种方式阅读每个课程列表：

int numOfCourses;
afile >> numOfCourses;
for (int i = 0; i < numOfCourses; i++)
{
    string course;
    afile >> course;

    int grades;
    afile >> grades;

    // Fill in structure from `course` and `grades`...
}
于 2013-01-05T19:44:28.650 回答