From 232eb1185b2079bb4f59dd26464c723366d75a0d Mon Sep 17 00:00:00 2001
From: ptslgaequ <2728416244@qq.com>
Date: Sat, 16 Nov 2024 10:40:48 +0800
Subject: [PATCH] ADD file via upload

---
 学籍管理系统5.cpp | 94 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 94 insertions(+)
 create mode 100644 学籍管理系统5.cpp

diff --git a/学籍管理系统5.cpp b/学籍管理系统5.cpp
new file mode 100644
index 0000000..b7fb393
--- /dev/null
+++ b/学籍管理系统5.cpp
@@ -0,0 +1,94 @@
+#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;
+}
\ No newline at end of file