Accessing structure members

// create a structure called myStructure
struct myStructure {
  int myNum;
  char myLetter;
};
int main() {
  // Create a structure variable called myStructure called s1
  struct myStructure s1;
  // Assign values ​​to the members of s1
  s1.myNum = 13;
  s1.myLetter = 'B';
  // Create a structure variable of myStructure called s2
  // and assign it a value
  struct myStructure s2 = {13, 'B'};
  // print value
  printf("My number: %d\n", s1.myNum);
  printf("My letter: %c\n", s1.myLetter);
  return 0;
}

Create different structure variables

struct myStructure s1;
struct myStructure s2;
// Assign values ​​to different structure variables
s1.myNum = 13;
s1.myLetter = 'B';
s2.myNum = 20;
s2.myLetter = 'C';