#include #include #include // 定义学生结构体,包含学号、班级、姓名以及三门课程成绩 typedef struct Student { char id[20]; // 使用字符串存储学号,便于处理用户输入(可能是学号或姓名) int class_num; char name[20]; double score1; double score2; double score3; } Student; // 交换两个学生结构体的函数 void swap(Student *a, Student *b) { Student temp = *a; *a = *b; *b = temp; } // 计算学生总成绩的函数,方便后续比较排序(虽然本题删除操作未直接用到,但保持代码完整性) double totalScore(const Student *s) { return s->score1 + s->score2 + s->score3; } // 根据输入的学号或姓名查找学生在数组中的索引位置,若没找到返回 -1 int findStudentIndex(Student students[], int n, char target[20]) { for (int i = 0; i < n; i++) { if (strcmp(students[i].id, target) == 0 || strcmp(students[i].name, target) == 0) { return i; } } return -1; } // 删除指定学号或姓名的学生信息,并保持数组有序 void deleteStudent(Student students[], int *n, char target[20]) { int index = findStudentIndex(students, *n, target); if (index!= -1) { for (int i = index; i < *n - 1; i++) { students[i] = students[i + 1]; } (*n)--; } } // 打印学生数组信息 void printStudents(Student students[], int n) { for (int i = 0; i < n; i++) { printf("%s %d %s %.1lf %.1lf %.1lf\n", students[i].id, students[i].class_num, students[i].name, students[i].score1, students[i].score2, students[i].score3); } } int main() { Student students[100]; // 假设最多存储100个学生信息,可根据实际情况调整大小 int num_students = 3; // 初始已有3个学生信息 // 静态初始化已有三个学生信息(按题目给定示例) Student s1 = {"10001", 11, "Zhang", 99.5, 88.5, 89.5}; Student s2 = {"10002", 12, "Yang", 77.9, 56.5, 87.5}; Student s3 = {"10003", 11, "Liang", 92.5, 99.0, 60.5}; students[0] = s1; students[1] = s2; students[2] = s3; char input[20]; printf("please input:\n"); scanf("%s", input); // 查找要删除的学生是否存在 int index = findStudentIndex(students, num_students, input); if (index == -1) { // 如果学生不存在,直接输出原有学生信息并结束程序 printStudents(students, num_students); return 0; } // 如果学生存在,询问是否确定删除 printf("Are you sure(yes/no)?\n"); char choice[10]; scanf("%s", choice); if (strcmp(choice, "n") == 0) { // 用户输入 n,输出所有学生信息后结束程序 printStudents(students, num_students); } else if (strcmp(choice, "y") == 0) { // 用户输入 y,执行删除操作并输出剩余学生信息 deleteStudent(students, &num_students, input); printStudents(students, num_students); } return 0; }