#include<stdio.h>#include<stdlib.h>#include <string.h>struct Worker{ int id;//工號 char name[16];//姓名 char sex[8];//性別 int age;//年齡 char edu_exp[32];//學歷 int wage;//工資 char adress[32];//地址 char phong[16];//電話 Worker* next;};//創建表頭Worker m_head = { 0 };//用戶輸入信息int user_input(Worker* w){ printf("ID:"); scanf("%d", &w->id); getchar();//吸收回車字符 printf("name:"); gets_s(w->name); printf("sex:"); gets_s(w->sex); printf("age:"); scanf("%d", &w->age); getchar();//吸收回車字符 printf("edu_exp:"); gets_s(w->edu_exp); printf("wage:"); scanf("%d", &w->wage); getchar();//吸收回車字符 printf("adress:"); gets_s(w->adress); printf("phone:"); gets_s(w->phong); return 0;}//添加對象void add(Worker* w){ w->next = m_head.next; m_head.next = w;}//按插入對象int insert(Worker* w){ Worker* cur = m_head.next; // 當前節點current Worker* pre = &m_head; // 上一個節點previous while (cur) { if (w->id < cur->id) // 找到這個位置  break; pre = cur; cur = cur->next; // 找到最后一個對象 } // 插入到pre節點的后面 w->next = pre->next; pre->next = w; return 0;}//刪除對象int remove(int id){ Worker* cur = m_head.next;//當前節點為第一個對象 Worker* pre = &m_head;//當前節點的前一個節點，為頭節點，指向第一個對象 while (cur) { if (id == cur->id)//找到要刪除的節點 {  pre->next = cur->next;  free(cur);//刪除該節點  return 1;//成功刪除返回1 } pre = cur; cur = cur->next; } return 0;}//查找對象int find(int id){ Worker* p = m_head.next; while (p) { if (id == p->id) {  printf("ID:%d/nName:%s/nSex:%s/nAge:%d/nEdu-exp:%s/nWage:%d/nAdress:%s/nPhone:%s/n",  p->id, p->name, p->sex, p->age, p->edu_exp, p->wage, p->adress, p->phong);  return 1;//找到目標返回1 } p = p->next; } return 0;}//遍歷void show_all(){ Worker* p = m_head.next; if (!p) { printf("暫無員工信息!/n"); return; } printf("工 號 姓 名 性 別 年 齡 學 歷 工 資 住 址  電 話/n"); printf("----------------------------------------------------------------/n"); while (p) { printf("%d %s %s %d %s %d %s %s/n", p->id, p->name, p->sex, p->age, p->edu_exp,  p->wage, p->adress, p->phong); p = p->next; }}//向文件存入數據int save(){ const char* filename = "F://data.txt"; FILE* fp = fopen(filename, "a"); if (fp == NULL) { printf("can not open the file...."); exit(0); } Worker* p = m_head.next; while (p) { fprintf(fp, "/r"); fprintf(fp, "%d ", p->id); fprintf(fp, "%s ", p->name); fprintf(fp, "%s ", p->sex); fprintf(fp, "%d ", p->age); fprintf(fp, "%s ", p->edu_exp); fprintf(fp, "%d ", p->wage); fprintf(fp, "%s ", p->adress); fprintf(fp, "%s ", p->phong); fprintf(fp, "/t/r/n"); p = p->next; } fclose(fp); return 0;}//修改對象void rewrite(int id){ Worker* p = m_head.next; while (p) { if (id == p->id) {  user_input(p); } p = p->next; }}//主菜單void List(){ Worker* w = NULL; char key; while (1) { do {  system("cls");  printf("*******************************************************/n");  printf("*   主菜單操作界面   */n");  printf("*       */n");  printf("* 1.錄入職工信息     */n");  printf("* 2.瀏覽職工信息     */n");  printf("* 3.查詢職工信息     */n");  printf("* 4.刪除職工信息     */n");  printf("* 5.修改職工信息     */n");  printf("* 6.使用說明      */n");  printf("* 7.退出      */n");  printf("*       */n");  printf("*******************************************************/n");  key = getchar(); } while (key != '1'&&key != '2'&&key != '3'&&key != '4'  &&key != '5'&&key != '6'&&key != '7'); switch (key) { case '1':system("cls");  while (1)  {  Worker* w = (Worker*)malloc(sizeof(Worker));  user_input(w);  insert(w);  if (getchar() == 'N')  {   break;  }  }  save();  free(w);  break; case '2':system("cls");  show_all();  system("pause");  break; case '3':system("cls");  if (!m_head.next)  {  printf("暫無員工信息!/n");  system("pause");  break;  }  while (1)  {  int n;  printf("---------------------------------/n");  printf("請輸入要查找的ID號:");  scanf("%d", &n);  if (!find(n))  {   printf("找不到ID號為%d 的職工信息.../n", n);  }  char ch = getchar();  if (ch == 'N')  {   break;  }  }  break; case '4':system("cls");  if (!m_head.next)  {  printf("暫無員工信息!/n");  system("pause");  break;  }  while (1)  {  int n;  printf("---------------------------------/n");  printf("請輸入要刪除的ID號:");  scanf("%d", &n);  if (remove(n))  {   printf("成功刪除ID號為%d的職工信息./n", n);  }  else   printf("無法刪除ID號為%d的職工信息./n", n);  char ch = getchar();  if (ch == 'N')//摁N退出  {   break;  }  }  break; case '5':system("cls");//  if (!m_head.next)  {  printf("暫無員工信息!/n");  system("pause");  break;  }  while (1)  {  int n;  printf("請輸入要修改的ID號:/n");  scanf("%d", &n);  printf("請修改:/n");  rewrite(n);  if (getchar() == 'N')  {   break;  }  }  break; case '6':system("cls");  printf("職工系統使用說明:摁相應數字進入相應的子菜單，若想退出則摁N/n開始無數據，需要先進行錄入./n");  system("pause");  break; case '7':system("cls");//  return;  break; } }}int main(){ List(); return 0;}