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1、
#include
#include
#include
#define N 50
#define OLDFILE "score.dat"
#define NUMFILE "std.dat"
#define AVEFILE "sort.dat"
#define NEXTFILE "next.dat"
typedef struct {
int number;
char name[20];
int score[5];
float average;
}stu;
int readfi
2、le(char *file, stu *record);
void writefile(char *file, stu *record,int stunum);
void mycreate();
void display(char *file);
void stamenu();
void numsort();
void stagrade();
void managemenu();
void makeup_note();
void leave_note();
void new_list();
void avesort();
void main() {
char
3、 choose = 0;
do {
printf("請(qǐng)選擇你需要的服務(wù) \n");
printf("1. 創(chuàng)建學(xué)生記錄\n");
printf("2. 查詢菜單\n");
printf("3. 管理菜單\n");
printf("4. 文盲慎入\n");
printf("0. 退出系統(tǒng)\n");
scanf("%c", &choose);
switch(choose) {
case '1':
mycreate();
break;
case '2':
stamenu();
4、 break;
case '3':
managemenu();
break;
case '4':
printf("\n\t\t請(qǐng)自己實(shí)現(xiàn)創(chuàng)新功能！");
getchar();
break;
case '0':
exit(0);
default:
printf("\n\t\t%c為非法選項(xiàng)！\n",choose);
break;
}
} while(1);
}
int readfile(char *file, stu *record)
{ int i =
5、 0, j = 0;
float ave = 0.0;
FILE *fp = NULL;
fp = fopen(file, "r");
if(fp == NULL) {
printf("Can't open the file!\n");
return -1;
}
while ((feof(fp)) == 0)
{
fscanf(fp,"%5d%20s", &record[i].number, record[i].name);
for(j = 0; j < 5; j++)
fscanf(f
6、p, "%5d", &record[i].score[j]);
fscanf(fp, "%f\n", &ave);
record[i].average = ave;
i++;
if (i >= N) {
printf("讀取文件出錯(cuò), 按任意鍵并關(guān)閉系統(tǒng)!/n");
getchar();
exit(0);
}
}
fclose(fp);
return i;
}
void writefile(char * file, stu * record, int stunum)
{
int i = 0, j = 0;
7、
FILE *fp = NULL;
for(i = 0; i < stunum; i++)
{
fprintf(fp, "%5d%20s", record[i].number, record[i].name);
for(j = 0; j < 5; j++)
fprintf(fp, "%5d", record[i].score[j]);
fprintf(fp, "6.1If\n", record[i].average);
}
fclose(fp);
}
void mycreate()
{
int i = 0, j = 0
8、, f = 0, number = 0;
char yes_no = '\0';
stu record[N] = {0};
i = readfile(OLDFILE, record);
if (i < 0) {
printf("文件為空，請(qǐng)從頭創(chuàng)建學(xué)生記錄! \n");
i = 0;
}
do {
if (i >= N) {
printf("超出存儲(chǔ)范圍, 保存并退出輸入. \n");
break;
}
printf(" 第%d個(gè)學(xué)生\n",i+1);
do {
f = 0
9、;
printf("\n 學(xué)號(hào):");
scanf("%d", &number);
for(j = 0; j <= i; j++)
if(record[j].number == number) {
printf("學(xué)號(hào)有誤, 請(qǐng)重新輸入....... \n");
f = 1;
break;
}
} while(f == 1);
record[i].number = number;
printf("\n 姓名:"); scanf("%s",record[i].name);
10、printf("\n 數(shù)學(xué)成績(jī):"); scanf("%d", &record[i].score[0]);
printf("\n 英語(yǔ)成績(jī):"); scanf("%d", &record[i].score[1]);
printf("\n 物理成績(jī):"); scanf("%d", &record[i].score[2]);
printf("\n 編程成績(jī):"); scanf("%d", &record[i].score[3]);
printf("\n 馬哲成績(jī):"); scanf("%d", &record[i].score[4]);
rec
11、ord[i].average=0;
i++;
getchar();
do {
printf("\n 要繼續(xù)嗎 (Y/N)?\n");
scanf("%c", &yes_no);
} while(yes_no != 'Y' && yes_no != 'y' && yes_no != 'N' && yes_no!='n');
} while(yes_no == 'y'|| yes_no == 'Y');
writefile(OLDFILE, record, i);
printf("以下是對(duì)已輸入學(xué)生信息的確認(rèn)!\n");
12、
display(OLDFILE);
getchar();
}
void display(char * file)
{
stu student_info[N] = {0};
int stu_num = 0, i = 0, j = 0;
stu_num = readfile(file, student_info);
if (stu_num <= 0 || stu_num > N) {
printf("讀取文件出錯(cuò), 按任意鍵并關(guān)閉系統(tǒng)!/n");
getchar();
exit(0);
}
for (i = 0; i
13、 < stu_num; i++) {
printf("學(xué)號(hào): %d\n", student_info[i].number);
printf("姓名: %s\n", student_info[i].name);
printf("各門功課的分?jǐn)?shù)如下: %d\n");
printf(" 數(shù)學(xué)成績(jī): %d", student_info[i].score[0]);
printf(" 英語(yǔ)成績(jī): %d", student_info[i].score[1]);
printf(" 物理成績(jī): %d", student_info[i].score[2]);
print
14、f(" 編程成績(jī): %d", student_info[i].score[3]);
printf(" 馬哲成績(jī): %d", student_info[i].score[4]);
printf("平均分: %d", student_info[i].average);
}
printf("確認(rèn)完按任意鍵返回! \n");
getchar();
}
void stamenu()
{
char choose='\0';
do {
printf("請(qǐng)選擇你需要的選項(xiàng)");
printf("1. 按學(xué)號(hào)排序");
15、printf("2. 按平均分并排序");
printf("3. 統(tǒng)計(jì)分?jǐn)?shù)段");
printf("4. 返回上一層");
printf("0. 退出系統(tǒng)");
switch(choose) {
case '1':
numsort();
break; /*按學(xué)號(hào)排序*/
case '2':
avesort();
break; /*計(jì)算平均分并排序*/
case '3':
stagrade();
break
16、; /*統(tǒng)計(jì)分?jǐn)?shù)段*/
case '4':
return;
case '0':
exit(0);
default :
printf("\n\t\t%c為非法選項(xiàng)！\n", choose);
break;
}
}while(1);
}
//按學(xué)號(hào)排列
void numsort()
{
stu student_info[N] = {0};
int stu_num = 0, i = 0, j = 0;
int num, min, max;
17、 stu temp;
stu_num = readfile(OLDFILE, student_info);
if (stu_num <= 0 || stu_num > N) {
printf("讀取文件出錯(cuò), 按任意鍵并關(guān)閉系統(tǒng)!/n");
getchar();
exit(0);
}
max = stu_num;
min = 0;
for (num = max - min; num > 0; num /= 2) {
for (i = min + num; i <= max; i += num) {
temp = s
18、tudent_info[i];
for (j = i - num; j >= 0 && student_info[j].number < temp.number; j -= num) {
student_info[j + num].average = student_info[j].average;
strcpy(student_info[j + num].name, student_info[j].name);
student_info[j + num].number = student_info[j].number;
strncp
19、y((char *)student_info[j + num].score, (char *)student_info[j].score, sizeof(student_info[j].score));
}
student_info[j + num].average = temp.average;
strcpy(student_info[j + num].name, temp.name);
student_info[j + num].number = temp.number;
strncpy((char *)student_info[j + num].s
20、core, (char *)temp.score, sizeof(student_info[j].score));
}
}
}
//按平均成績(jī)排列
void avesort()
{
stu student_info[N] = {0};
int stu_num = 0, i = 0, j = 0;
int num, min, max;
stu temp;
stu_num = readfile(OLDFILE, student_info);
if (stu_num <= 0 || stu_num > N) {
21、
printf("讀取文件出錯(cuò), 按任意鍵并關(guān)閉系統(tǒng)!/n");
getchar();
exit(0);
}
max = stu_num;
min = 0;
for (num = max - min; num > 0; num /= 2) {
for (i = min + num; i <= max; i += num) {
temp = student_info[i];
for (j = i - num; j >= 0 && student_info[j].average < temp.average; j -= n
22、um) {
student_info[j + num].average = student_info[j].average;
strcpy(student_info[j + num].name, student_info[j].name);
student_info[j + num].number = student_info[j].number;
strncpy((char *)student_info[j + num].score, (char *)student_info[j].score, sizeof(student_info[j].scor
23、e));
}
student_info[j + num].average = temp.average;
strcpy(student_info[j + num].name, temp.name);
student_info[j + num].number = temp.number;
strncpy((char *)student_info[j + num].score, (char *)temp.score, sizeof(student_info[j].score));
}
}
}
void stagrade()
{
24、 stu record [N] = {0};
int i = 0, j, n = 0, count[5][5] = {0};
n = readfile(AVEFILE,record);
for(i = 0; i < n; i++) /*統(tǒng)計(jì)各學(xué)科各分?jǐn)?shù)段人數(shù)，行表示科目，列表示分?jǐn)?shù)段*/
{
for(j=0;j<5;j++)
if(record[i].score[j]>=90)
count[j][0]++;
else if(record[i].score[j]>=80 && record[i].score
25、[j]<90)
count[j][1]++;
else if(record[i].score[j]>=70 && record[i].score[j]<80)
count[j][2]++;
else if(record[i].score[j]>=60 && record[i].score[j]<70)
count[j][3]++;
else count[j][4]++;
}
printf("全班數(shù)學(xué)成績(jī)?nèi)缦? \n");
for (i = 0; i < 4; i++) {
printf("%d
26、 分以上的有 %d 人 \n", 100 - 10 * i, count[0][i]);
}
printf("不及格 %d 人 \n", count[0][i]);
printf("全班英語(yǔ)成績(jī)?nèi)缦? \n");
for (i = 0; i < 4; i++) {
printf("%d 分以上的有 %d 人 \n", 100 - 10 * i, count[1][i]);
}
printf("不及格 %d 人 \n", count[1][i]);
printf("全班物理成績(jī)?nèi)缦? \n");
for (i = 0; i < 4; i++)
27、 {
printf("%d 分以上的有 %d 人 \n", 100 - 10 * i, count[2][i]);
}
printf("不及格 %d 人 \n", count[2][i]);
printf("全班編程成績(jī)?nèi)缦? \n");
for (i = 0; i < 4; i++) {
printf("%d 分以上的有 %d 人 \n", 100 - 10 * i, count[3][i]);
}
printf("不及格 %d 人 \n", count[3][i]);
printf("全班馬哲成績(jī)?nèi)缦? \n");
for (i
28、= 0; i < 4; i++) {
printf("%d 分以上的有 %d 人 \n", 100 - 10 * i, count[4][i]);
}
printf("不及格 %d 人 \n", count[4][i]);
}
void managemenu()
{
char choose='\0';
do {
printf("請(qǐng)選擇從菜單中選擇你需要的選項(xiàng)");
printf("1. 生成并打印補(bǔ)考通知單");
printf("2. 生成并打印退學(xué)通知單");
printf("3. 生成并打印新名冊(cè)"
29、);
printf("4. 返回上一層");
scanf("%c",&choose);
switch(choose)
{
case '1':
makeup_note();
break; /*生成并打印補(bǔ)考通知單*/
case '2':
leave_note();
break; /* 生成并打印退學(xué)通知單*/
case '3':
new_list();
break; /*生成并打印新名冊(cè)*/
case '4':
return;
30、 case '0':
exit(0); /*返回*/
default:
printf("\n\t\t%c為非法選項(xiàng)!\n", choose);
}
} while(1);
}
void makeup_note() {
stu record[N]={0};
int i=0,j=0,n=0,t=0,count=0,time[5]={0},f=0;
char site[5];
char sl[6]={0};
n = readfile(OLDFILE, record);
f
31、or(i = 0; i < 5; i++) {
switch(i)
{
case 0:
strcpy(sl,"數(shù)學(xué)");
break;
case 1:
strcpy(sl,"英語(yǔ)");
break;
case 2:
strcpy(sl,"物理");
break;
case 3:
strcpy(sl,"編程");
break;
case 4:
strcpy(sl,
32、"馬哲");
break;
}
printf("\n\n 請(qǐng)輸入科目%s補(bǔ)考時(shí)間(偶數(shù)的整點(diǎn)時(shí)間: 8 - 18點(diǎn)):", sl);
do {
f=0;
scanf("%d",&t);
if(t%2!=0) {
printf("請(qǐng)輸入偶數(shù)整點(diǎn)時(shí)間：");
f=1;
continue;
}
if(t<8 || t>18) {
printf("請(qǐng)輸入8-18整點(diǎn)時(shí)間:");
f=1;
continue;
}
for(j=0;j
33、 if(t==time[j]) {
printf("與其他時(shí)間沖突！請(qǐng)重新輸入：");
f=i;
break;
}
} while(f == 1);
time[i] = t;
printf("輸入%s的補(bǔ)考地點(diǎn)，4位數(shù)字的教室號(hào)：如1001", sl);
scanf("%s", site);
site[4] = '\0';
printf("%s補(bǔ)考安排信息如下, 按任意鍵確認(rèn)! \n", sl);
printf("科目: %s, 時(shí)間: %d, 教室: %s! \n", sl, time
34、[i], site);
getchar();
}
}
void leave_note() {
}
void new_list()
{
stu record[N]={0};
int i=0,j=0,n=0,count=0;
n = readfile(OLDFILE, record);
for(i=0;i3) {
for(j=i;j
學(xué)生管理系統(tǒng)
