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5.c

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+#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;
+}