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;
}