diff --git a/作业2.5.c b/作业2.5.c
deleted file mode 100644
index 5f2df02..0000000
--- a/作业2.5.c
+++ /dev/null
@@ -1,85 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h> // °üº¬ÁË qsort º¯ÊýËùÐèµÄÍ·Îļþ
-#include <string.h> // °üº¬ÁË×Ö·û´®´¦Àíº¯ÊýËùÐèµÄÍ·Îļþ
-
-// ѧÉúÐÅÏ¢µÄ½á¹¹Ìå
-struct Student {
-    int student_id;
-    int class_id;
-    char name[50];
-    float score1;
-    float score2;
-    float score3;
-};
-
-// ±È½Ïº¯Êý£¬ÓÃÓÚÅÅÐò
-int compareStudents(const void *a, const void *b) {
-    struct Student *student1 = (struct Student *)a;
-    struct Student *student2 = (struct Student *)b;
-
-    if (student1->class_id != student2->class_id) {
-        return student1->class_id - student2->class_id;
-    } else {
-        float total_score1 = student1->score1 + student1->score2 + student1->score3;
-        float total_score2 = student2->score1 + student2->score2 + student2->score3;
-        return total_score2 - total_score1;
-    }
-}
-
-int main() {
-    struct Student students[100];
-    int num_students = 3;  // ³õʼÓÐ3¸öѧÉúÐÅÏ¢
-
-    // ³õʼ»¯ÒÑÓÐѧÉúÐÅÏ¢
-    students[0] = (struct Student){10001, 11, "Zhang", 99.5, 88.5, 89.5};
-    students[1] = (struct Student){10002, 12, "Yang", 77.9, 56.5, 87.5};
-    students[2] = (struct Student){10003, 11, "Liang", 92.5, 99.0, 60.5};
-
-    // ¶ÔÒÑÓÐѧÉúÐÅÏ¢½øÐÐÅÅÐò
-    qsort(students, num_students, sizeof(struct Student), compareStudents);
-
-    // ÊäÈë´ýɾ³ýѧÉúµÄѧºÅ»òÐÕÃû
-    char search[50];
-    printf("ÊäÈë´ýɾ³ýѧÉúµÄѧºÅ»òÐÕÃû£º");
-    scanf("%s", search);
-
-    // ¼ì²éѧºÅ»òÐÕÃûÊÇ·ñ´æÔÚ£¬Èç¹û²»´æÔÚ£¬Êä³öÔ­ÓÐÈý¸öѧÉúÐÅÏ¢²¢Í˳ö³ÌÐò
-    int found = 0;
-    for (int i = 0; i < num_students; i++) {
-        if (strcmp(search, students[i].name) == 0 || atoi(search) == students[i].student_id) {
-            found = 1;
-            for (int j = i; j < num_students - 1; j++) {
-                students[j] = students[j + 1];
-            }
-            num_students--;
-            break;
-        }
-    }
-
-    if (!found) {
-        printf("¸ÃѧÉúÐÅÏ¢²»´æÔÚ£¬Êä³öÔ­ÓÐÈý¸öѧÉúÐÅÏ¢²¢Í˳ö³ÌÐò£º\n");
-        for (int i = 0; i < num_students; i++) {
-            printf("%d %d %s %.1f %.1f %.1f\n", students[i].student_id, students[i].class_id, students[i].name, students[i].score1, students[i].score2, students[i].score3);
-        }
-        return 0;
-    }
-
-    // Êä³öÊ£ÓàѧÉúµÄÐÅÏ¢
-    for (int i = 0; i < num_students; i++) {
-        printf("%d %d %s %.1f %.1f %.1f\n", students[i].student_id, students[i].class_id, students[i].name, students[i].score1, students[i].score2, students[i].score3);
-    }
-
-    // ѯÎÊÓû§ÊÇ·ñÈ·ÈÏɾ³ý
-    char confirm[3];
-    printf("Are you sure(yes/no)? ");
-    scanf("%s", confirm);
-    if (strcmp(confirm, "no") == 0) {
-        // Èç¹ûÓû§ÊäÈë "no"£¬ÔÙ´ÎÊä³öËùÓÐѧÉúÐÅÏ¢£¬È»ºó³ÌÐò½áÊø
-        for (int i = 0; i < num_students; i++) {
-            printf("%d %d %s %.1f %.1f %.1f\n", students[i].student_id, students[i].class_id, students[i].name, students[i].score1, students[i].score2, students[i].score3);
-        }
-    }
-
-    return 0;
-}
-