如何将数据存储在也是指针的结构成员中？

Question

This is the struct that I have to use

struct subject {  
char subjectID[10];  
float marks; }; 

struct student {  
char name[20];  
char ID[10];  
struct subject *enrolled; }; 

My program has to let the students enroll in more than one subject, how do I store this???

Answer 1

Consider adding 2 elements to your structure student . Add a dynamic array of subject and a enrolled_count and using that track enrolled subjects. An example:

struct Student
{
    char name[20];
    char ID  [10];
    struct subject *enrolled;
    int enrolled_count;
}

So when you access it somewhere you can use Student.enrolled[index] (the. can be -> depends if it's a pointer to a struct)