typedef struct Stu
{
  char name[20];
  short age;
  char tele[12];
  char sex[5];
}Stu;
void Print(Stu* ps)
{
  printf("name:%s\n",ps->name);
  printf("age:%d\n",(*ps).age);//两种方式都可以打印
}
int main()
{
  Stu s={"李四",40,"123456789","男"};
  Print(&s);//与Print(s)相比更好，在传参时只开辟4或8个字节的空间
  return 0;
}