实验1
#include <stdio.h>
#include <string.h>
#define N 3
typedef struct student {
int id;
char name[20];
char subject[20];
double perf;
double mid;
double final;
double total;
char level[10];
} STU;
void input(STU [], int);
void output(STU [], int);
void calc(STU [], int);
int fail(STU [], STU [], int);
void sort(STU [], int);
int main() {
STU st[N], fst[N];
int k;
printf("录入学生成绩信息:\n");
input(st, N);
printf("\n成绩处理...\n");
calc(st, N);
k = fail(st, fst, N);
sort(st, N);
printf("\n学生成绩排名情况:\n");
output(st, N);
printf("\n不及格学生信息:\n");
output(fst, k);
return 0;
}
void input(STU s[], int n) {
int i;
for(i = 0; i < n; i++)
scanf("%d %s %s %lf %lf %lf", &s[i].id, s[i].name, s[i].subject,
&s[i].perf, &s[i].mid, &s[i].final);
}
void output(STU s[], int n) {
int i;
printf("-----------------\n");
printf("学号 姓名 科目 平时 期中 期末 总评 等级\n");
for(i = 0; i<n; i++)
printf("%d %-6s %-4s %-4.0f %-4.0f %-4.0f %-4.1f %s\n",s[i].id,s[i].name,s[i].subject,s[i].perf,s[i].mid,s[i].final,s[i].total,s[i].level);
}
void calc(STU s[],int n) {
int i;
for(i = 0; i < n; i++) {
s[i].total = s[i].perf * 0.2 +
s[i].mid * 0.2 +
s[i].final * 0.6;
if(s[i].total >= 90)
strcpy(s[i].level, "优");
else if(s[i].total >= 80 && s[i].total < 90)
strcpy(s[i].level, "良");
else if(s[i].total >= 70 && s[i].total < 80)
strcpy(s[i].level, "中");
else if(s[i].total >= 60 && s[i].total < 70)
strcpy(s[i].level, "及格");
else
strcpy(s[i].level, "不及格");
}
}
int fail(STU s[], STU t[], int n) {
int i, k = 0;
for(i = 0; i < n; i++)
if(s[i].total < 60)
t[k++] = s[i];
return k;
}
void sort(STU s[], int n) {
int i, j;
STU t;
for(i = 0; i < n-1; i++)
for(j = 0; j < n-1-i; j++)
if(s[j].total < s[j+1].total) {
t = s[j];
s[j] = s[j+1];
s[j+1] = t;
}
}
实验2
#include <stdio.h>
#include <string.h>
#define N 10
#define M 80
typedef struct {
char name[M];
char author[M];
} Book;
int main() {
Book x[N] = { {"《一九八四》", "乔治.奥威尔"},
{"《美丽新世界》", "赫胥黎"},
{"《昨日的世界》", "斯蒂芬.茨威格"},
{"《万历十五年》", "黄仁宇"},
{"《一只特立独行的猪》", "王小波"},
{"《百年孤独》", "马尔克斯"},
{"《情人》", "玛格丽特.杜拉斯"},
{"《只是孩子》", "帕蒂.史密斯"},
{"《刀锋》", "毛姆"},
{"《沉默的大多数》", "王小波"} };
Book *ptr;
int i;
char author[M];
printf("所有图书信息: \n");
for(ptr = x; ptr < x + N; ++ptr)
printf("%-30s%-30s\n", ptr->name, ptr->author);
printf("\n输入作者名: ");
gets(author);
for(ptr = x; ptr < x + N; ++ptr)
if(strcmp(ptr->author, author) == 0) {
printf("%-30s%-30s\n", ptr->name, ptr->author);
}
return 0;
}
实验3
#include <stdio.h>
#include<string.h>
#define N 100
typedef struct {
char num[10];
int s1;
int s2;
double sum;
char level[10];
} STU;
int fun(STU a[], int n, STU h[]);
int main() {
STU s[N] = { {"GA05", 85, 76},
{"GA03", 76, 90},
{"GA02", 69, 90},
{"GA04", 85, 56},
{"GA01", 91, 95},
{"GA07", 72, 80},
{"GA08", 64, 45},
{"GA06", 87, 98},
{"GA015", 85, 86},
{"GA013", 91, 97} };
STU h[N];
int i, k, n = 10;
k = fun(s, n, h);
printf("There are :\n");
for (i = 0; i < k; i++)
printf("%s %d %d %.2f %s\n", h[i].num, h[i].s1, h[i].s2, h[i].sum, h[i].level);
return 0;
}
int fun(STU a[], int n, STU h[]) {
int i, j = 0;
double av = 0.0;
for (i = 0; i < n; i++)
{
a[i].sum = 0.7 * a[i].s1 + 0.3 * a[i].s2;
}
for (i = 0; i < n; i++)
{
av = av + a[i].sum;
}
av = av / n;
for (i = 0; i < n; i++)
if (a[i].sum > av)
{
strcpy(a[i].level, "均分以上");
h[j] = a[i];
j++;
}
return j;
}
实验4
#include <stdio.h>
#include <string.h>
#define N 5
typedef struct student {
char name[10];
int num;
int maths;
int computer;
int english;
int sum;
char level[10];
} STU;
void fun(STU a[], int n);
int main() {
STU s[6*N]={ {"A001", 1, 34, 67, 80},
{"B003", 3, 78, 87, 90},
{"A002", 2, 90, 98, 99},
{"B002", 4, 56, 78, 98},
{"A005", 5, 35, 67, 79} };
int i;
fun(s, N);
for(i = 0; i < N; i++)
printf("%s %d %d %d %d %d %s\n", s[i].name, s[i].num, s[i].maths, s[i].computer, s[i].english, s[i].sum, s[i].level);
return 0;
}
void fun(STU a[], int n) {
int i,max,min;
STU *ptr;
for(ptr = a;ptr<a+n;ptr++)
ptr->sum = ptr->computer + ptr->english + ptr->maths;
ptr = a;
max = min = ptr->sum;
for(ptr = a+1;ptr<a+n;ptr++)
{
if(ptr->sum>max)
max = ptr->sum;
if(ptr->sum<min)
min = ptr->sum;
}
for(ptr = a;ptr<a+n;ptr++)
{
if(ptr->sum==max)
strcpy(ptr->level,"优秀");
else if(ptr->sum==min)
strcpy(ptr->level,"不及格");
else
strcpy(ptr->level,"及格");
}
}
实验5
#include <stdio.h>
#define N 5
typedef struct student {
long no;
char name[20];
int score;
} STU;
void input(STU s[], int n);
int find_min_list(STU s[], STU t[], int n);
void output(STU s[], int n);
int main() {
STU stu[N], min_list[N];
int count;
printf("录入%d个学生信息\n", N);
input(stu, N);
printf("\n统计最低分人数和学生信息...\n");
count = find_min_list(stu, min_list, N);
printf("\n一共有%d个最低分，信息如下:\n", count);
output(min_list, count);
return 0;
}
void input(STU s[], int n) {
int i;
for(i=0;i<n;i++)
scanf("%ld%s%d",&s[i].no,s[i].name,&s[i].score);
}
void output(STU s[], int n) {
int i;
for(i=0;i<n;i++)
printf("%-6ld%-8s%-4d\n",s[i].no,s[i].name,s[i].score);
}
int find_min_list(STU s[], STU t[], int n) {
int i;
int min = s[0].score;
STU *ptr;
for(ptr = s+1;ptr<s+n;++ptr)
if(ptr->score < min)
min = ptr->score;
for(ptr = s,i = 0;ptr<s+n;++ptr)
if(ptr->score==min)
{
t[i] = *ptr;
i++;
}
return i;
}
标签：level,int,++,STU,实验,printf,ptr From： https://www.cnblogs.com/yaj030820/p/16995560.html