Update README.md

README.md

@@ -1,65 +1,69 @@
-# Student_registration_management_system
 #include <stdio.h>
-#include <stdlib.h>
 #include <string.h>
 
+// 定义学生结构体
 struct Student {
-    char id[20];
-    char clas[20];
+    char id[10];
+    int class;
     char name[20];
-    double score1;
-    double score2;
-    double score3;
-    double score;
+    float score1;
+    float score2;
+    float score3;
 };
 
-// Function prototypes
-void inputStudent(struct Student *stu);
-void deleteStudent(struct Student *stu, int *numStudents);
-void selectStudent(struct Student *stu, int numStudents);
+// 删除学生函数
+void deleteStudent(struct Student students[], int *numStudents, char key[]) {
+    int i, j;
     
-int main() {
-    struct Student students[100];  // Adjust the size as needed
-    int numStudents = 0;
-    int option;
-
-    do {
-        // Display menu
-        printf("1. Input\n2. Delete\n3. Select\n4. Order\n5. Output\n6. Quit\n");
-        printf("Please input your option: ");
-        scanf("%d", &option);
-
-        switch (option) {
-            case 1:
-                inputStudent(&students[numStudents]);
-                numStudents++;
-                break;
-            case 2:
-                deleteStudent(students, &numStudents);
-                break;
-            case 3:
-                selectStudent(students, numStudents);
-                break;
-            // Add cases for other options (order, output) if needed
-            case 6:
-                printf("Exiting the program.\n");
-                break;
-            default:
-                printf("Invalid option. Please try again.\n");
+    // 查找待删除学生的位置
+    for (i = 0; i < *numStudents; i++) {
+        if (strcmp(students[i].id, key) == 0 || strcmp(students[i].name, key) == 0) {
+            break;
         }
-    } while (option != 6);
+    }
     
-    return 0;
+    // 如果找到了学生，删除并保持数组有序
+    if (i < *numStudents) {
+        for (j = i; j < *numStudents - 1; j++) {
+            students[j] = students[j + 1];
+        }
+        (*numStudents)--;
+    }
 }
 
-void inputStudent(struct Student *stu) {
+int main() {
+    // 初始化已有学生信息
+    struct Student students[3] = {
+        {"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 = 3; // 已有学生数量
 
-}
+    char key[20]; // 待删除学生的学号或姓名
+    printf("请输入待删除学生的学号或姓名：");
+    scanf("%s", key);
 
-void deleteStudent(struct Student *stu, int *numStudents) {
+    // 调用删除函数
+    deleteStudent(students, &numStudents, key);
 
-}
+    // 输出剩余学生信息
+    for (int i = 0; i < numStudents; i++) {
+        printf("%s %d %s %.1f %.1f %.1f\n", students[i].id, students[i].class, students[i].name, students[i].score1, students[i].score2, students[i].score3);
+    }
 
-void selectStudent(struct Student *stu, int numStudents) {
+    // 输出确认信息
+    char confirm[3];
+    printf("Are you sure(yes/no)? ");
+    scanf("%s", confirm);
 
+    if (strcmp(confirm, "no") == 0) {
+        // 用户选择不删除，再次输出所有学生信息
+        for (int i = 0; i < numStudents; i++) {
+            printf("%s %d %s %.1f %.1f %.1f\n", students[i].id, students[i].class, students[i].name, students[i].score1, students[i].score2, students[i].score3);
+        }
+    }
+
+    return 0;
 }