[c++] structor(구조체)

1. 구조체 배열

   struct Student {
    int id;//4
    char name[20];//1
    float grade[2];//8
   };
   
   int main() {
     Student sinfos[4] = {
     {202001,"Lee",{4.3f,4.1f}},
     {202001,"Choi",{4.3f,4.1f}},
     {202001,"Park",{4.3f,4.1f}},
     };
   
     for (auto i = 0; i < 4; i++) {
         cout << sinfos[i].id << endl;
         cout << sinfos[i].name << endl;
         cout << sinfos[i].grade[0] << endl;
         cout << sinfos[i].grade[1] << endl;
     }
   return 0;
   }

 

2. 구조체 포인터

struct Rectangle {
    int x, y;
    int w, h;
};

int main() {
    Rectangle r = { 15,10,50,70 };
    Rectangle* pr = &r;

    cout << r.x << " "<< (*pr).x << endl;
    cout << (*pr).y << " " << pr->y << endl;
    }

• LinkedList

  struct LinkedList {
    int data;
    LinkedList* p;
  };
  int main() {
    LinkedList a, b, c;
    a.data = 99;
    a.p = &b;
    b.data = 93;
    b.p = &c;
    c.data = 94;
    c.p = &a;
  
    cout << c.data << endl;
    cout << b.p->data << endl;
    cout << (*b.p).data << endl;
    cout << a.p->p->data << endl; 
    cout << c.p->p->p->data << endl;
    return 0;
  }