细节决定成败(指向结构体指针)

//指向结构体变量的指针
#include <stdio.h>
#include <string.h>
struct student{
long num;
char name[20];
char sex;
float score;
};
int main(){
struct student stu_1;
struct student *p;
p=&stu_1;
p->num=10101;
strcpy(stu_1.name,"li lin");
p->sex='m';
p->score=89.5;
printf("no:%ld\nname:%s\nsex:%c\n:%5.1f\n",
stu_1.num,stu_1.name,stu_1.sex,stu_1.score);
printf("no:%ld\nname:%s\nsex:%c\n:%5.1f\n",
p->num,p->name,p->sex,p->score);

return 0;
}