From 9e1c7ca87f10dac25f387ceb563566158cc23dd8 Mon Sep 17 00:00:00 2001
From: flykhan <liubo666666@outlook.com>
Date: Thu, 20 Jul 2023 00:49:02 +0800
Subject: [PATCH] =?UTF-8?q?=E5=AD=A6=E7=94=9F=E7=AE=A1=E7=90=86=E7=B3=BB?=
 =?UTF-8?q?=E7=BB=9F=20=E4=BF=AE=E6=94=B9=20bug:=20=E5=88=A0=E9=99=A4=20de?=
 =?UTF-8?q?lete=5Fstu=20=E7=9A=84=E4=B8=A4=E5=A4=84=20free()?=
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Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 day13/homework/README.md                      | 456 ------------------
 day13/homework/a.out                          | Bin 13256 -> 0 bytes
 day13/homework/studentManagementSystem        | Bin 0 -> 13232 bytes
 .../{h1.c => studentManagementSystem.c}       |   4 +-
 4 files changed, 2 insertions(+), 458 deletions(-)
 delete mode 100755 day13/homework/a.out
 create mode 100755 day13/homework/studentManagementSystem
 rename day13/homework/{h1.c => studentManagementSystem.c} (99%)

diff --git a/day13/homework/README.md b/day13/homework/README.md
index 65fa978..be2708a 100755
--- a/day13/homework/README.md
+++ b/day13/homework/README.md
@@ -1,459 +1,3 @@
-```c
-学生管理系统#include <stdio.h>
-#include <stdlib.h> // malloc
-#include <string.h> // strcpy
-
-typedef enum front_color_e
-{
-    BLACK = 30, // 黑色
-    RED,        // 红色
-    GREEN,      // 绿色
-    YELLOW,     // 黄色
-    BLUE,       // 蓝色
-    PURPLE,     // 紫色
-    CYAN,       // 青色
-    WHITE,      // 白色
-} Front_Color;  // 前景色
-
-typedef enum back_color_e
-{
-    BLACK_B = 40, // 黑色
-    RED_B,        // 红色
-    GREEN_B,      // 绿色
-    YELLOW_B,     // 黄色
-    BLUE_B,       // 蓝色
-    PURPLE_B,     // 紫色
-    CYAN_B,       // 青色
-    WHITE_B,      // 白色
-} Back_Color;     // 背景色
-
-typedef enum attr_e
-{
-    BOLD = 1,      // 加粗
-    UNDERLINE = 4, // 下划线
-    BLINK,         // 闪烁
-    REVERSE = 7,   // 反显
-    HIDE,          // 隐藏
-} Attr;            // 文本属性
-
-// 定义学生信息结构体,链表的节点
-typedef struct stu_s
-{
-    int sid;
-    char name[32];
-    int age;
-
-    struct stu_s *next;
-} STU;
-
-// 添加学生
-STU *insert_stu(STU *head, STU *item)
-{
-    // 如果头指针为空,说明链表为空,直接将新建的节点作为头指针
-    if (head == NULL)
-    {
-        head = item;
-    }
-    else
-    {
-        // 如果头指针不为空,说明链表不为空,需要找到链表的尾部,将新建的节点插入到尾部
-        STU *p = head;          // 创建一个临时指针,用来保存头指针,防止头指针丢失
-        while (p->next != NULL) // 当 p 的下一个节点不为空时,说明 p 不是尾部
-        {
-            p = p->next; // p 一直向后移动,直到找到尾部
-        }
-        p->next = item; // 将 item 插入到尾部
-    }
-    return head; // 返回头指针
-}
-
-// 删除学生
-STU *delete_stu(STU *head, char sid)
-{
-    if (NULL == head)
-    {
-        printf("\033[%dm无数据,无法删除\033[0m\n", RED);
-        return NULL;
-    }
-    if (head->sid == sid)
-    {
-        // *tp 为临时指针,用来保存头指针
-        STU *tp = head;    // 保存头指针
-        head = head->next; // 头指针指向下一个节点
-        free(tp);          // 释放头指针
-    }
-    else
-    {
-        STU *tp = head;                                  // 保存头指针
-        while (NULL != tp->next && sid != tp->next->sid) // 当 tp 的下一个节点不为空时,且下一个节点的学号不等于要删除的学号时,继续向后移动指针 tp
-        {
-            tp = tp->next; // tp 一直向后移动,直到找到尾部
-        }
-        if (NULL == tp->next) // 到达了链表尾部还是没有找到要删除的内容
-        {
-            printf("\033[%dm未找到 sid = %d 的学生,删除失败\033[0m\n", RED, sid);
-        }
-        else
-        {
-            STU *tpx = tp->next;  // 保存要删除的节点
-            tp->next = tpx->next; // 将链表位置指向要删除的节点的下一个节点
-            free(tpx);            // 释放要删除的节点
-            printf("\033[%dm删除 sid = %d 的学生成功\033[0m\n", BLUE, sid);
-        }
-    }
-    return head; // 返回头指针
-}
-
-// 打印学生
-void shows(STU *head)
-{
-    // 如果头指针为空,说明链表为空,直接返回
-    if (head == NULL)
-    {
-        printf("\033[%dm无数据,无法打印\033[0m\n", RED);
-        return;
-    }
-    else
-    {
-        // 如果头指针不为空,说明链表不为空,需要遍历链表,打印每一个节点的信息
-        STU *p = head; // 创建一个临时指针,用来保存头指针,防止头指针丢失
-        // 清屏
-        printf("\033[2J");
-        printf("--------------------\n");
-        printf("\033[%dm学号\t姓名\t年龄\033[0m\n", BLUE_B);
-        while (p != NULL) // 当 p 不为空时,说明 p 不是尾部,则打印 p 的信息
-        {
-            printf("\033[%dm%d\t%s\t%d\033[0m\n", BLUE, p->sid, p->name, p->age); // 打印 p 的信息
-            p = p->next;                                                          // p 一直向后移动,直到找到尾部
-        }
-    }
-}
-
-// 查询学生
-STU *find_stu(STU *head, char sid)
-{
-    if (NULL == head)
-    {
-        printf("\033[%dm无数据,无法查询\033[0m\n", RED);
-        return NULL; // 返回空指针,说明没有找到要查询的节点
-    }
-
-    STU *tp = head;                            // 保存头指针
-    while (NULL != tp->next && sid != tp->sid) // 当 tp 的下一个节点不为空时,且下一个节点的学号不等于要查询的学号时,继续向后移动指针 tp
-    {
-        tp = tp->next; // tp 一直向后移动,直到找到尾部
-    }
-    if (sid == tp->sid)
-        return tp; // 返回当前节点的指针,即为要查询的节点
-    return NULL;   // 返回空指针,说明没有找到要查询的节点
-}
-
-// 修改学生
-STU *update_stu(STU *head, char sid)
-{
-    if (NULL == head)
-    {
-        printf("\033[%dm无数据,无法修改\033[0m\n", RED);
-        return NULL;
-    }
-
-    STU *tp = find_stu(head, sid); // 查找要修改的节点
-    if (tp == NULL)
-    {
-        printf("\033[%dm未找到 sid = %d 的学生\033[0m\n", RED, sid);
-    }
-    else
-    {
-        // 临时变量,用来保存要修改的学生信息
-        char msid;
-        char mname[32];
-        int mage;
-
-        // 输入要修改的内容
-        printf("输入要修改的学生的 学号 姓名 年龄: ");
-        scanf("%hhd %s %d", &msid, mname, &mage);
-        tp->sid = msid;
-        strcpy(tp->name, mname);
-        tp->age = mage;
-        // 修改成功
-        printf("\033[%dm修改 sid = %d 的学生成功\033[0m\n", BLUE, sid);
-    }
-    return head; // 返回头指针
-}
-
-// 排序学生
-STU *sort_stu(STU *head)
-{
-    if (NULL == head)
-    {
-        printf("\033[%dm无数据,无法排序\033[0m\n", RED);
-        return NULL;
-    }
-    // 选择排序方式: 1) 按照sid 2)按照age
-    int choose; // 选择排序方式
-    printf("选择排序方式: 1) 按照sid 2)按照age: ");
-    scanf("%d", &choose);
-    if (1 == choose) // 按照sid排序
-    {
-        // 选择排序方式: 1) 升序 2)降序
-        int choose2; // 选择排序方式
-        printf("选择排序方式: 1) 升序 2)降序: ");
-        scanf("%d", &choose2);
-        if (1 == choose2) // 升序
-        {
-            // 按照sid升序排序
-            STU *p = head; // 创建一个临时指针,用来保存头指针,防止头指针丢失
-            while (p != NULL)
-            {
-                STU *q = p->next; // 创建一个临时指针,用来保存头指针,防止头指针丢失
-                while (q != NULL)
-                {
-                    if (p->sid > q->sid)
-                    {
-                        // 交换 p 和 q 的数据
-                        STU *tp = (STU *)malloc(sizeof(STU));
-                        tp->sid = p->sid;
-                        strcpy(tp->name, p->name);
-                        tp->age = p->age;
-
-                        p->sid = q->sid;
-                        strcpy(p->name, q->name);
-                        p->age = q->age;
-
-                        q->sid = tp->sid;
-                        strcpy(q->name, tp->name);
-                        q->age = tp->age;
-                    }
-                    q = q->next;
-                }
-                p = p->next;
-            }
-        }
-        else if (2 == choose2) // 降序
-        {
-            STU *p = head; // 创建一个临时指针,用来保存头指针,防止头指针丢失
-            while (p != NULL)
-            {
-                STU *q = p->next; // 创建一个临时指针,用来保存头指针,防止头指针丢失
-                while (q != NULL)
-                {
-                    if (p->sid < q->sid)
-                    {
-                        STU *tp = (STU *)malloc(sizeof(STU));
-                        tp->sid = p->sid;
-                        strcpy(tp->name, p->name);
-                        tp->age = p->age;
-
-                        p->sid = q->sid;
-                        strcpy(p->name, q->name);
-                        p->age = q->age;
-
-                        q->sid = tp->sid;
-                        strcpy(q->name, tp->name);
-                        q->age = tp->age;
-                    }
-                    q = q->next;
-                }
-                p = p->next;
-            }
-        }
-        else
-        {
-            // 选择错误
-            printf("\033[%dm选择错误\033[0m\n", RED);
-        }
-    }
-    else if (2 == choose) // 按照age排序
-    {
-        // 选择排序方式: 1) 升序 2)降序
-        int choose2; // 选择排序方式
-        printf("选择排序方式: 1) 升序 2)降序: ");
-        scanf("%d", &choose2);
-        if (1 == choose2) // 升序
-        {
-            STU *p = head; // 创建一个临时指针,用来保存头指针,防止头指针丢失
-            while (NULL != p)
-            {
-                STU *q = p->next; // 创建一个临时指针,用来保存头指针,防止头指针丢失
-                while (NULL != q)
-                {
-                    if (p->age > q->age)
-                    {
-                        STU *tp = (STU *)malloc(sizeof(STU));
-                        tp->sid = p->sid;
-                        strcpy(tp->name, p->name);
-                        tp->age = p->age;
-
-                        p->sid = q->sid;
-                        strcpy(p->name, q->name);
-                        p->age = q->age;
-
-                        q->sid = tp->sid;
-                        strcpy(q->name, tp->name);
-                        q->age = tp->age;
-                    }
-                    q = q->next;
-                }
-                p = p->next;
-            }
-        }
-        else if (2 == choose2) // 降序
-        {
-            STU *p = head; // 创建一个临时指针,用来保存头指针,防止头指针丢失
-            while (NULL != p)
-            {
-                STU *q = p->next; // 创建一个临时指针,用来保存头指针,防止头指针丢失
-                while (NULL != q)
-                {
-                    if (p->age < q->age)
-                    {
-                        STU *tp = (STU *)malloc(sizeof(STU));
-                        tp->sid = p->sid;
-                        strcpy(tp->name, p->name);
-                        tp->age = p->age;
-
-                        p->sid = q->sid;
-                        strcpy(p->name, q->name);
-                        p->age = q->age;
-
-                        q->sid = tp->sid;
-                        strcpy(q->name, tp->name);
-                        q->age = tp->age;
-                    }
-                    q = q->next;
-                }
-                p = p->next;
-            }
-        }
-        else
-        {
-            // 选择错误
-            printf("\033[%dm选择错误\033[0m\n", RED);
-        }
-    }
-    else
-    {
-        // 选择错误
-        printf("\033[%dm选择错误\033[0m\n", RED);
-    }
-    return head; // 返回头指针
-}
-
-// 反序学生
-STU *reverse_stu(STU *head)
-{
-    if (NULL == head)
-    {
-        printf("\033[%dm无数据,无法反序\033[0m\n", RED);
-        return NULL;
-    }
-    STU *p = head; // 创建一个临时指针,用来保存头指针,防止头指针丢失
-    STU *q = NULL; // 创建一个临时指针,用来保存尾部指针
-    STU *tp = NULL;
-    while (NULL != p) // 当 NULL 不等于 p 时,说明 p 不是尾部,则反序
-    {
-        // 交换 p 和 q 的数据
-        q = p->next;  // 保存 p 的下一个节点，用作临时变量
-        p->next = tp; // 将 p 的下一个节点指向 tp
-        tp = p;       // 将 tp 指向 p
-        p = q;        // 将 p 指向 q
-    }
-    head = tp; // 将头指针指向 tp
-    printf("\033[%dm反序成功\033[0m\n", BLUE);
-    return head; // 返回头指针
-}
-
-int main(int argc, char const *argv[])
-{
-    STU *head = NULL; // 定义全局的头指针
-
-    // 声明临时变量,用来保存学生信息
-    char tsid;
-    char tname[32];
-    int tage;
-
-    // 创建几个学生信息，用于测试
-    STU *stu1 = (STU *)malloc(sizeof(STU));
-    stu1->sid = 1;
-    strcpy(stu1->name, "张三");
-    stu1->age = 18;
-    STU stu2 = {2, "李四", 21, NULL};
-    STU stu3 = {3, "王五", 15, NULL};
-    STU stu4 = {4, "赵六", 13, NULL};
-    head = insert_stu(head, stu1);
-    head = insert_stu(head, &stu2);
-    head = insert_stu(head, &stu3);
-    head = insert_stu(head, &stu4);
-
-    while (1)
-    {
-        // printf("\033[2J");
-        printf("--------------------\n");
-        printf("\033[%d;%dm学生管理系统\033[0m\n", BOLD, CYAN_B);
-        printf("\033[%d;%dm1) 添加学生 \n2) 删除学生 \n3) 打印  \n4) 查询  \n5) 修改 \n6) 排序  \n7) 反序 \n0) 退出\n请输入选项# \033[0m", BOLD, GREEN);
-        int cmd = 0;
-        scanf("%d", &cmd);
-        switch (cmd)
-        {
-        case 0:
-            return 1;
-        case 1:
-            printf("输入学生的 学号 姓名 年龄: ");
-            // 键盘收集数据并动态插入链表
-            scanf("%hhd %s %d", &tsid, tname, &tage); // 键盘收集数据
-            STU *item = (STU *)malloc(sizeof(STU));   // 申请一个节点的内存, 用来保存学生信息
-            item->sid = tsid;                         // 保存学生学号到新建的节点
-            strcpy(item->name, tname);                // 保存学生姓名到新建的节点
-            item->age = tage;                         // 保存学生年龄到新建的节点
-            item->next = NULL;                        // 新建的节点的下一个节点指向空,因为是尾部插入
-            head = insert_stu(head, item);            // 将新建的节点插入到链表中
-            break;
-        case 2:
-            printf("输入要删除的学生的学号: ");
-            scanf("%hhd", &tsid);
-            head = delete_stu(head, tsid);
-            break;
-        case 3:
-            shows(head);
-            break;
-        case 4:
-            printf("输入要查询的学生的学号: ");
-            scanf("%hhd", &tsid);
-            head = find_stu(head, tsid);
-            if (head == NULL)
-            {
-                printf("\033[%dm未找到 sid = %d 的学生\033[0m\n", RED, tsid);
-            }
-            else
-            {
-                printf("查询到的学生信息如下: \n");
-                printf("\033[%dm学号\t姓名\t年龄\033[0m\n", BLUE_B);
-                printf("\033[%dm%d\t%s\t%d\033[0m\n", BLUE, head->sid, head->name, head->age);
-            }
-            break;
-        case 5:
-            printf("输入要修改的学生的学号:");
-            scanf("%hhd", &tsid);
-            head = update_stu(head, tsid);
-            break;
-        case 6:
-            printf("排序学生信息:\n");
-            head = sort_stu(head);
-            break;
-        case 7:
-            printf("反序学生信息:\n");
-            head = reverse_stu(head);
-            break;
-        default:
-            printf("\033[%dm选择错误\033[0m\n", RED);
-            break;
-        }
-    }
-    return 0;
-}
-
-```
-
 ### 主菜单
 
 ![image-20230720001141667](./README.assets/image-20230720001141667.png)
diff --git a/day13/homework/a.out b/day13/homework/a.out
deleted file mode 100755
index 6ea6c89b1824101c5bf82dc794e0945f2b5dae30..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

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HcmV?d00001

diff --git a/day13/homework/h1.c b/day13/homework/studentManagementSystem.c
similarity index 99%
rename from day13/homework/h1.c
rename to day13/homework/studentManagementSystem.c
index 5b0c531..b9bd051 100644
--- a/day13/homework/h1.c
+++ b/day13/homework/studentManagementSystem.c
@@ -79,7 +79,7 @@ STU *delete_stu(STU *head, char sid)
         // *tp 为临时指针,用来保存头指针
         STU *tp = head;    // 保存头指针
         head = head->next; // 头指针指向下一个节点
-        free(tp);          // 释放头指针
+        // free(tp);          // 释放头指针
     }
     else
     {
@@ -96,7 +96,7 @@ STU *delete_stu(STU *head, char sid)
         {
             STU *tpx = tp->next;  // 保存要删除的节点
             tp->next = tpx->next; // 将链表位置指向要删除的节点的下一个节点
-            free(tpx);            // 释放要删除的节点
+            // free(tpx);            // 释放要删除的节点
             printf("\033[%dm删除 sid = %d 的学生成功\033[0m\n", BLUE, sid);
         }
     }