部分小程序

#include
#include
#include
#include

struct student{
        int num;
        char name[10];
        int c,y,s;
        double average;
};
int fib(int g)
{
    switch(g){
        case 0:return 0;
        case 1:
        case 2:return 2;
    }
    printf("g=%d\n",g);
    return fib(g-1)+fib(g-2);
}

double jiecheng(int n);
int main(void)
{
    system("color B");
    time_t timer = time(NULL);
    printf("%s\n",ctime(&timer));     //得到日历时间
    int i,n;
    struct student si,max;
    printf("请输入要比较的几个人：\n");
    scanf("%d",&n);
    printf("请输入学生的学号，名字，成绩：\n");
    for(i=1;i<=n;i++)
    {
        printf("No.%d:",i);
        scanf("%d %s %d %d %d",&si.num ,si.name ,&si.c ,&si.s ,&si.y );
        si.average  = (si.c +si.s +si.y ) / 3.0;
        if(i==1)
        {
            max = si;
        }   
        if(max.average < si.average )
        {
            max = si;
        }   
     }
    printf("请输出最大的那个人的信息：\n");
        printf("num:%d\nname:%s\naverage:%.2f\n",max.num ,max.name ,max.average );
    return 0;
    int k;
    k = fib(4);
    printf("k=%d\n",k);
    return 0;
        char str[100];
        gets(str);
    printf("%s",str);
        int i,n;
    scanf("%d",&n);
    for(i=1;i<=n;i++)
    {
        printf("%d! = %d\n",i,jiecheng(i));
    }
    return 0;   
}
double jiecheng(int n){
    static double f = 1;
    f = f * n;
    return (f); 
}