#include <stdio.h> #include <string.h> #include <conio.h> #include <stdlib.h>4 typedef struct book_info { //定义图书信息的结构体变量并声明新的类型名 char loginNo[10]; /*登录号*/ char name[20]; /*书名*/ char author[20]; /*作者名*/ char classNo[10]; /*分类名*/ char company[20]; /*出版单位*/ char date[20]; /*出版日期*/ char price[10]; /*价格*/ struct book_info *next; }Booklist, *Pointer; int num = 0; //全局变量的定义 Pointer Head = NULL; //头指针为空 FILE *fp; //指向文件的指针

首先，该段代码中包含了一些不必要的头文件，例如：conio.h，malloc.h等。建议只保留stdio.h和stdlib.h。 其次，可以将#define OK 1和#define error 0替换为枚举类型，使代码更加清晰易读。 最后，在结构体定义中，可以将OtherInfo和QElemtype合并为一个类型，避免定义过多类型。同时，也可以将结构体中的变量类型进行优化，例如将int类型的adjvex改为short或者char类型。 重构后的代码如下所示： ```c #include <stdio.h> #include <stdlib.h> #define MAX_VERTEX_NUM 100 #define MAX_ARC_NUM 10 typedef enum { ERROR = 0, OK = 1 } Status; typedef char VertexType; typedef int ArcType; typedef struct ArcNode { int adjvex; struct ArcNode* nextarc; ArcType* info; } ArcNode; typedef struct VNode { VertexType data; ArcNode* firstarc; } VNode, AdjList[MAX_VERTEX_NUM]; typedef struct { AdjList vertices; int vexnum, arcnum; } ALGraph; ``` 希望可以帮到你。

t _node{ student data; struct _node *next; }node; node *createList() { node *head,*p; head = p = (node*)malloc(sizeof(node)); p->next = NULL; return head; } void addStudent(node *head, student *newStu) { node *p, *q; p = head; while(p->next != NULL) { p = p->next; } q = (node*)malloc(sizeof(node)); q->data = *newStu; q->next = p->next; p->next = q; } void displayList(node *head) { node *p; p = head->next; while(p != NULL) { printf("%d\t%s\t%s\t%s\t%s\t%s\t%s\n", p->data.ID, p->data.name, p->data.sex, p->data.Class, p->data.date, p->data.Tel, p->data.home); p = p->next; } } void deleteStudent(node *head, int ID) { node *p, *q; p = head->next; while(p != NULL && p->data.ID != ID) { q = p; p = p->next; } if(p == NULL) { printf("No student with ID %d exists.\n", ID); } else { q->next = p->next; free(p); printf("Student with ID %d has been deleted.\n", ID); } } int main() { node *head; student newStu; int choice, ID; char name[20], sex[5], Class[20], date[20], Tel[20], home[20]; head = createList(); do { printf("Menu:\n"); printf("1. Add student\n"); printf("2. Display all students\n"); printf("3. Delete student\n"); printf("4. Exit\n"); printf("Enter your choice: "); scanf("%d", &choice); switch(choice) { case 1: printf("Enter student ID: "); scanf("%d", &newStu.ID); printf("Enter student name: "); scanf("%s", &newStu.name); printf("Enter student sex: "); scanf("%s", &newStu.sex); printf("Enter student class: "); scanf("%s", &newStu.Class); printf("Enter student date of birth: "); scanf("%s", &newStu.date); printf("Enter student telephone number: "); scanf("%s", &newStu.Tel); printf("Enter student home address: "); scanf("%s", &newStu.home); addStudent(head, &newStu); break; case 2: displayList(head); break; case 3: printf("Enter student ID to delete: "); scanf("%d", &ID); deleteStudent(head, ID); break; case 4: printf("Exiting program...\n"); break; default: printf("Invalid choice. Please try again.\n"); break; } } while(choice != 4); return 0; }