xueji/5.c

#include <stdio.h>
#include <string.h>

// <20><><EFBFBD><EFBFBD>ѧ<EFBFBD><D1A7><EFBFBD>ṹ<EFBFBD><E1B9B9>
struct Student {
    char id[10];
    int class;
    char name[20];
    float score1, score2, score3;
};

// <20><><EFBFBD><EFBFBD>ɾ<EFBFBD><C9BE>ѧ<EFBFBD><D1A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
void deleteStudent(struct Student students[], int* numStudents, char key[]) {
    int i, j, found = 0;

    // <20><><EFBFBD><EFBFBD>ѧ<EFBFBD><D1A7>
    for (i = 0; i < *numStudents; i++) {
        if (strcmp(students[i].id, key) == 0 || strcmp(students[i].name, key) == 0) {
            found = 1;

            // ɾ<><C9BE>ѧ<EFBFBD><D1A7>
            for (j = i; j < *numStudents - 1; j++) {
                students[j] = students[j + 1];
            }

            // <20><><EFBFBD><EFBFBD>ѧ<EFBFBD><D1A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
            (*numStudents)--;
            break;
        }
    }

    // <20><><EFBFBD><EFBFBD><EFBFBD>ҵ<EFBFBD>ѧ<EFBFBD><D1A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʣ<EFBFBD><CAA3>ѧ<EFBFBD><D1A7><EFBFBD><EFBFBD>Ϣ
    if (found) {
        printf("Student deleted. Remaining students:\n");
        for (i = 0; i < *numStudents; i++) {
            printf("%s %d %s %.2f %.2f %.2f\n", students[i].id, students[i].class, students[i].name,
                students[i].score1, students[i].score2, students[i].score3);
        }
    }
    else {
        printf("Student not found.\n");
    }
}

int main() {
    // <20><>ʼ<EFBFBD><CABC>ѧ<EFBFBD><D1A7><EFBFBD><EFBFBD>Ϣ
    struct Student students[] = {
        {"10001", 11, "Zhang", 99.5, 88.5, 89.5},
        {"10002", 12, "Yang", 77.9, 56.5, 87.5},
        {"10003", 11, "Liang", 92.5, 99.0, 60.5}
    };

    int numStudents = sizeof(students) / sizeof(students[0]);

    // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼѧ<CABC><D1A7><EFBFBD><EFBFBD>Ϣ
    printf("Initial students:\n");
    for (int i = 0; i < numStudents; i++) {
        printf("%s %d %s %.2f %.2f %.2f\n", students[i].id, students[i].class, students[i].name,
            students[i].score1, students[i].score2, students[i].score3);
    }

    // ѭ<><D1AD>ɾ<EFBFBD><C9BE>ѧ<EFBFBD><D1A7>
    char key[20];
    char choice;
    do {
        // <20><><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD>Ҫɾ<D2AA><C9BE><EFBFBD><EFBFBD>ѧ<EFBFBD><D1A7><EFBFBD><EFBFBD>ѧ<EFBFBD>Ż<EFBFBD><C5BB><EFBFBD><EFBFBD><EFBFBD>
        printf("Enter the student ID or name to delete: ");
        scanf("%s", key);

        // ɾ<><C9BE>ѧ<EFBFBD><D1A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
        deleteStudent(students, &numStudents, key);

        // ѯ<><D1AF><EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD>ɾ<EFBFBD><C9BE>
        printf("Are you sure (yes/no)? ");
        scanf(" %c", &choice);

    } while (choice == 'no');

    // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѧ<EFBFBD><D1A7><EFBFBD><EFBFBD>Ϣ
    printf("Final students:\n");
    for (int i = 0; i < numStudents; i++) {
        printf("%s %d %s %.2f %.2f %.2f\n", students[i].id, students[i].class, students[i].name,
            students[i].score1, students[i].score2, students[i].score3);
    }

    return 0;
}