xueji/5.c

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

// 定义学生结构体
struct Student {
    char id[10];
    int class;
    char name[20];
    float score1, score2, score3;
};

// 定义删除学生函数
void deleteStudent(struct Student students[], int* numStudents, char key[]) {
    int i, j, found = 0;

    // 查找学生
    for (i = 0; i < *numStudents; i++) {
        if (strcmp(students[i].id, key) == 0 || strcmp(students[i].name, key) == 0) {
            found = 1;

            // 删除学生
            for (j = i; j < *numStudents - 1; j++) {
                students[j] = students[j + 1];
            }

            // 减少学生数量
            (*numStudents)--;
            break;
        }
    }

    // 如果找到学生，则输出剩余学生信息
    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() {
    // 初始化学生信息
    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]);

    // 输出初始学生信息
    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);
    }

    // 循环删除学生
    char key[20];
    char choice;
    do {
        // 接收用户输入要删除的学生的学号或姓名
        printf("Enter the student ID or name to delete: ");
        scanf("%s", key);

        // 删除学生并输出结果
        deleteStudent(students, &numStudents, key);

        // 询问是否继续删除
        printf("Are you sure (yes/no)? ");
        scanf(" %c", &choice);

    } while (choice == 'no');

    // 输出最终学生信息
    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;
}