forked from pi7mcrg2k/ScoreManagementSystem
parent
c0d413ace8
commit
7cf49abbab
@ -0,0 +1,267 @@
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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// ¶¨ÒåѧÉú½á¹¹Ìå
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typedef struct Student {
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char id[20];
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char clas[20];
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char name[20];
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double score1, score2, score3, totalScore;
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} Student;
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#define MAX_STUDENTS 100
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Student students[MAX_STUDENTS];
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int count = 0;
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void menu();
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void input();
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void delete();
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void select();
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void sort();
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void output();
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int main() {
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char option;
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while (1) {
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menu();
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printf("please input your option: ");
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scanf(" %c", &option);
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switch (option) {
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case '1':
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input();
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break;
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case '2':
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delete();
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break;
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case '3':
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select();
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break;
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case '4':
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sort();
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break;
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case '5':
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output();
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break;
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case '6':
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printf("Exiting.\n");
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return 0;
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default:
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printf("Invalid option.\n");
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}
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}
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return 0;
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}
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void menu() {
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printf("\n");
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printf("1.input\n");
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printf("2.delete\n");
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printf("3.select\n");
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printf("4.order\n");
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printf("5.output\n");
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printf("6.quit\n");
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}
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void input() {
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while (1) {
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if (count >= MAX_STUDENTS) {
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printf("Maximum number of students reached.\n");
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return;
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}
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Student buffer;
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printf("Id: ");
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scanf("%s", buffer.id);
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printf("Class: ");
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scanf("%s", buffer.clas);
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printf("Name: ");
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scanf("%s", buffer.name);
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printf("Score1: ");
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scanf("%lf", &buffer.score1);
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printf("Score2: ");
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scanf("%lf", &buffer.score2);
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printf("Score3: ");
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scanf("%lf", &buffer.score3);
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buffer.totalScore = buffer.score1 + buffer.score2 + buffer.score3;
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students[count++] = buffer;
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char cont[4];
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printf("continue? (yes/no): ");
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scanf("%s", cont);
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if (cont[0] == 'n') break;
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}
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}
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void delete() {
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if (count == 0) {
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printf("No students.\n");
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return;
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}
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char key[20];
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printf("Enter student ID or name to delete: ");
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scanf("%s", key);
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int i, boo1 = 0;
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for (i = 0; i < count; i++) {
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if (strcmp(students[i].id, key) == 0 || strcmp(students[i].name, key) == 0) {
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boo1 = 1;
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break;
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}
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}
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int j;
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if (boo1) {
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for (j = i; j < count - 1; j++) {
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students[j] = students[j + 1];
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}
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count--;
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printf("Student deleted successfully.\n");
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output();
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} else {
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printf("Student not found.\n");
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output();
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}
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}
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// void select() {
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// char key[20];
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// printf("Enter student ID, name, or class to search: ");
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// scanf("%s", key);
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// int boo1 = 0;
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// int i;
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// for (i = 0; i < count; i++) {
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// if (strcmp(students[i].id, key) == 0 || strcmp(students[i].name, key) == 0 || strcmp(students[i].clas, key) == 0) {
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// printf("%s %s %s %.1f %.1f %.1f %.1f\n", students[i].id, students[i].clas, students[i].name,
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// students[i].score1, students[i].score2, students[i].score3, students[i].totalScore);
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// boo1 = 1;
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// }
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// }
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// if (!boo1) {
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// printf("No eligible student found.\n");
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// }
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// }
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void select() {
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char input[50];
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printf("Enter your query (e.g., 1 classNum-classNum, 2 idNum-idNum, 3 namePrefix*, 4 minScore, 5 classNum.idNum-idNum): ");
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scanf(" %[^\n]", input);
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int type = input[0] - '0';
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char condition[50];
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strcpy(condition, input + 2);
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int boo1 = 0;
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switch (type) {
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case 1: {
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int startClass, endClass;
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sscanf(condition, "%d-%d", &startClass, &endClass);
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int i;
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for (i = 0; i < count; i++) {
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int class = atoi(students[i].clas);
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if (class >= startClass && class <= endClass) {
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printf("%s %s %s %.1f %.1f %.1f %.1f\n", students[i].id, students[i].clas, students[i].name,
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students[i].score1, students[i].score2, students[i].score3, students[i].totalScore);
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boo1 = 1;
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}
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}
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break;
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}
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case 2: {
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int startId, endId;
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sscanf(condition, "%d-%d", &startId, &endId);
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int i;
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for (i = 0; i < count; i++) {
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int id = atoi(students[i].id);
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if (id >= startId && id <= endId) {
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printf("%s %s %s %.1f %.1f %.1f %.1f\n", students[i].id, students[i].clas, students[i].name,
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students[i].score1, students[i].score2, students[i].score3, students[i].totalScore);
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boo1 = 1;
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}
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}
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break;
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}
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case 3: {
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char prefix[20];
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sscanf(condition, "%s", prefix);
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int prefixLen = strlen(prefix) - 1;
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int i;
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for (i = 0; i < count; i++) {
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if (strncmp(students[i].name, prefix, prefixLen) == 0) {
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printf("%s %s %s %.1f %.1f %.1f %.1f\n", students[i].id, students[i].clas, students[i].name,
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students[i].score1, students[i].score2, students[i].score3, students[i].totalScore);
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boo1 = 1;
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}
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}
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break;
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}
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case 4: {
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double minScore;
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sscanf(condition, "%lf", &minScore);
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int i;
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for (i = 0; i < count; i++) {
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if (students[i].totalScore >= minScore) {
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printf("%s %s %s %.1f %.1f %.1f %.1f\n", students[i].id, students[i].clas, students[i].name,
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students[i].score1, students[i].score2, students[i].score3, students[i].totalScore);
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boo1 = 1;
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}
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}
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break;
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}
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case 5: {
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int class, startId, endId;
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sscanf(condition, "%d.%d-%d", &class, &startId, &endId);
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int i;
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for (i = 0; i < count; i++) {
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int studentClass = atoi(students[i].clas);
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int studentId = atoi(students[i].id);
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if (studentClass == class && studentId >= startId && studentId <= endId) {
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printf("%s %s %s %.1f %.1f %.1f %.1f\n", students[i].id, students[i].clas, students[i].name,
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students[i].score1, students[i].score2, students[i].score3, students[i].totalScore);
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boo1 = 1;
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}
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}
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break;
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}
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default:
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printf("Invalid query type.\n");
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return;
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}
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if (!boo1) {
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printf("No eligible student found.\n");
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}
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}
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void sort() {
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int i, j;
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for (i = 0; i < count - 1; i++) {
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for (j = i + 1; j < count; j++) {
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if (strcmp(students[i].clas, students[j].clas) > 0 ||
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(strcmp(students[i].clas, students[j].clas) == 0 && students[i].totalScore < students[j].totalScore)) {
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Student temp = students[i];
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students[i] = students[j];
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students[j] = temp;
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}
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}
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}
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printf("Students sorted successfully.\n");
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output();
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}
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void output() {
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if (count == 0) {
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printf("No students to display.\n");
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return;
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}
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int i;
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for (i = 0; i < count; i++) {
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printf("%s %s %s %.1f %.1f %.1f %.1f\n", students[i].id, students[i].clas, students[i].name,
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students[i].score1, students[i].score2, students[i].score3, students[i].totalScore);
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}
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}
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