C 语言如何实现面向对象编程的雏形

typedef struct Person Person;

typedef void (*Method)(Person *my_self);

typedef struct Person {
    char name[12];
    int age;
    int sex;
    Method behavior1; // 行为1
} Person;


void selfIntroducation(Person *my_self) {
    printf("my name is %s,age %d,sex %d
",my_self->name,my_self->age,my_self->sex);
}

int main(int argc, const char * argv[]) {
    // 1
    Person *pmst = (Person *)malloc(sizeof(Person));
    // 1.1
    strcpy(pmst->name, "pmst");
    pmst->age = 18;
    pmst->sex = 0;
    // 2
    pmst->behavior1 = selfIntroducation;
    // 3
    pmst->behavior1(pmst);

    free(pmst);

    return 0;
}