C语言职工管理系统设计

#include<stdio.h>#include<stdlib.h>#include <string.h>struct Worker{ int id;//工号 char name[16];//姓名 char sex[8];//性别 int age;//年龄 char edu_exp[32];//学历 int wage;//工资 char adress[32];//地址 char phong[16];//电话 Worker* next;};//创建表头Worker m_head = { 0 };//用户输入信息int user_input(Worker* w){ printf("ID:"); scanf("%d", &w->id); getchar();//吸收回车字符 printf("name:"); gets_s(w->name); printf("sex:"); gets_s(w->sex); printf("age:"); scanf("%d", &w->age); getchar();//吸收回车字符 printf("edu_exp:"); gets_s(w->edu_exp); printf("wage:"); scanf("%d", &w->wage); getchar();//吸收回车字符 printf("adress:"); gets_s(w->adress); printf("phone:"); gets_s(w->phong); return 0;}//添加对象void add(Worker* w){ w->next = m_head.next; m_head.next = w;}//按插入对象int insert(Worker* w){ Worker* cur = m_head.next; // 当前节点current Worker* pre = &m_head; // 上一个节点previous while (cur) { if (w->id < cur->id) // 找到这个位置  break; pre = cur; cur = cur->next; // 找到最后一个对象 } // 插入到pre节点的后面 w->next = pre->next; pre->next = w; return 0;}//删除对象int remove(int id){ Worker* cur = m_head.next;//当前节点为第一个对象 Worker* pre = &m_head;//当前节点的前一个节点，为头节点，指向第一个对象 while (cur) { if (id == cur->id)//找到要删除的节点 {  pre->next = cur->next;  free(cur);//删除该节点  return 1;//成功删除返回1 } pre = cur; cur = cur->next; } return 0;}//查找对象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;//找到目标返回1 } p = p->next; } return 0;}//遍历void show_all(){ Worker* p = m_head.next; if (!p) { printf("暂无员工信息!/n"); return; } printf("工 号 姓 名 性 别 年 龄 学 历 工 资 住 址  电 话/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; }}//向文件存入数据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;}//修改对象void rewrite(int id){ Worker* p = m_head.next; while (p) { if (id == p->id) {  user_input(p); } p = p->next; }}//主菜单void List(){ Worker* w = NULL; char key; while (1) { do {  system("cls");  printf("*******************************************************/n");  printf("*   主菜单操作界面   */n");  printf("*       */n");  printf("* 1.录入职工信息     */n");  printf("* 2.浏览职工信息     */n");  printf("* 3.查询职工信息     */n");  printf("* 4.删除职工信息     */n");  printf("* 5.修改职工信息     */n");  printf("* 6.使用说明      */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("暂无员工信息!/n");  system("pause");  break;  }  while (1)  {  int n;  printf("---------------------------------/n");  printf("请输入要查找的ID号:");  scanf("%d", &n);  if (!find(n))  {   printf("找不到ID号为%d 的职工信息.../n", n);  }  char ch = getchar();  if (ch == 'N')  {   break;  }  }  break; case '4':system("cls");  if (!m_head.next)  {  printf("暂无员工信息!/n");  system("pause");  break;  }  while (1)  {  int n;  printf("---------------------------------/n");  printf("请输入要删除的ID号:");  scanf("%d", &n);  if (remove(n))  {   printf("成功删除ID号为%d的职工信息./n", n);  }  else   printf("无法删除ID号为%d的职工信息./n", n);  char ch = getchar();  if (ch == 'N')//摁N退出  {   break;  }  }  break; case '5':system("cls");//  if (!m_head.next)  {  printf("暂无员工信息!/n");  system("pause");  break;  }  while (1)  {  int n;  printf("请输入要修改的ID号:/n");  scanf("%d", &n);  printf("请修改:/n");  rewrite(n);  if (getchar() == 'N')  {   break;  }  }  break; case '6':system("cls");  printf("职工系统使用说明:摁相应数字进入相应的子菜单，若想退出则摁N/n开始无数据，需要先进行录入./n");  system("pause");  break; case '7':system("cls");//  return;  break; } }}int main(){ List(); return 0;}