指向结构体变量的指针 学习笔记

#include<stdio.h>
void main()
{
struct stu_type{
char num[15];
char name[10];
int age;
int c;
int math;
int en;
int sum;
float ave;
}stu1={"2011159113","张晓天",22,60,70,75},*p;
p=&stu1;
stu1.sum = stu1.c + stu1.math + stu1.en;
stu1.ave = (float) stu1.sum /3;
printf("学生学号\t姓名\t年龄\tC语言\t数学\t英语\t总分\t平均分\n");
printf("%-16s%s\t%d\t%d\t%d\t%d\t%d\t%5.1f\n",stu1.num,stu1.name,stu1.age,stu1.c,stu1.math,stu1.en,stu1.sum,stu1.ave) ;
printf("%-16s%s\t%d\t%d\t%d\t%d\t%d\t%5.1f\n",(*p).num,(*p).name,(*p).age,(*p).c,(*p).math,(*p).en,(*p).sum,(*p).ave) ;
printf("%-16s%s\t%d\t%d\t%d\t%d\t%d\t%5.1f\n",p->num,p->name,p->age,p->c,p->math,p->en,p->sum,p->ave) ;
}