|
|
#include <stdio.h>
|
|
|
#include <stdlib.h>
|
|
|
#include <string.h>
|
|
|
|
|
|
// 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;
|
|
|
} |
