职工信息管理系统代码
作者：互联网
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
//记录职工数量的变量
int size;
//职工结构体
struct Employ
{
int num;
char name[10];
char sex[10];
int age;
char educ[10];
int salary;
char adress[20];
int phone;
};
//结点
struct NodeEmploy
{
struct Employ data;
struct NodeEmploy* next;
};
//菜单函数
void Menu()
{
printf("\n********************************\n");
printf("*******欢迎使用职工信息管理系*****\n");
printf("*********请选择功能**************\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.保存职工信息**********\n");
printf("*********0.退出系统**************\n");
printf("********************************\n");
}
//保存职工信息函数
void Save(struct NodeEmploy*headptr)
{
//打开文件：Employ.dat
FILE* fptr = fopen("Employ.dat", "wb");
//FILE*指针为空则返回0
//写入文件
if (fptr == NULL)//若文件指针为空
{
printf("保存失败！文件打开失败！\n");
return;
}
if (headptr->next == NULL)//若表为空
{
printf("保存失败！职工信息表为空！\n");
return;
}
struct NodeEmploy* ptr = headptr;
while (ptr->next != NULL)
{
fwrite(ptr->next,sizeof(struct NodeEmploy),1,fptr);
ptr = ptr->next;
}
fclose(fptr);//关闭文件
printf("保存成功！\n");
fptr = NULL;//指针置为空
}
//职工录入函数
void InputEmploy(struct NodeEmploy* headptr)
{
int choice=0;
struct NodeEmploy* p1=headptr;
while (p1->next != NULL)//使p1指向最后一个结点
{
p1 = p1->next;
}
do
{
struct NodeEmploy* ptr = (struct NodeEmploy*)malloc(sizeof(struct NodeEmploy));//创建一个结点
if (ptr == NULL)
{
free(ptr);
printf("mallocError");
}
else
{
p1->next = ptr;
size++;//size数量加1
ptr->next = NULL;
p1 = p1->next;
//用户输入要录入职工的信息
printf("请输入职工号：");
scanf("%d", &ptr->data.num);
printf("请输入职工姓名：");
scanf("%s", ptr->data.name);
printf("请输入职工性别(男/女)：");
scanf("%s", ptr->data.sex);
printf("请输入职工年龄：");
scanf("%d", &ptr->data.age);
printf("请输入职工学历：");
scanf("%s", ptr->data.educ);
printf("请输入职工工资：");
scanf("%d", &ptr->data.salary);
printf("请输入职工住址：");
scanf("%s", ptr->data.adress);
printf("请输入职工电话：");
scanf("%d", &ptr->data.phone);
printf("添加成功！\n");
//添加成功，若要继续添加请按1，推出功能按0
printf("继续添加请按1,退出功能请按0：");
scanf("%d", &choice);
}
}while (choice);
printf("目前有%d个职工的信息。\n", size);
}
//浏览职工函数
void Scan(struct NodeEmploy* headptr)
{
//如果headptr->next==NULL则表示无职工信息
if (headptr->next == NULL)
{
printf("职工信息表为空！\n");
return;
}
//由头结点开始遍历整个链表
//循环结束条件是结的next=NULL
struct NodeEmploy* ptr = headptr;
while (ptr->next != NULL)
{
printf("工号：\t%4d姓名：\t%-5s性别：\t%-1s年龄：\t%3d学历：\t%-4s工资：\t%6d住址：\t%-10s电话：\t%-10d\n",
ptr->next->data.num,
ptr->next->data.name,
ptr->next->data.sex,
ptr->next->data.age,
ptr->next->data.educ,
ptr->next->data.salary,
ptr->next->data.adress,
ptr->next->data.phone);
ptr = ptr->next;
}
}
//查询菜单函数
void SearchMenu()
{
printf("\n********************************\n");
printf("******请选择查询方式*************\n");
printf("******1.按职工号查询 **************\n");
printf("******2.按学历查询 **************\n");
printf("******0.退出查询*****************\n");
printf("********************************\n");
}
//按学历查询函数
void Search_educ(struct NodeEmploy* headptr)
{
printf("请输入你要查询的学历：");
char ch[20];
scanf("%s", ch);
//如果headptr->next==NULL则表示无职工信息
if (headptr->next == NULL)
{
printf("职工信息表为空！查找失败！\n");
return;
}
//由头结点开始遍历整个链表
//循环结束条件是结的next=NULL
struct NodeEmploy* ptr = headptr;
int count = 0;
int flag = 0;//标记，用来标记是否查询到
while (ptr->next != NULL)
{
if (!strcmp(ptr->next->data.educ, ch))
{
printf("工号：\t%4d姓名：\t%-5s性别：\t%-1s年龄：\t%3d学历：\t%-4s工资：\t%6d住址：\t%-10s电话：\t%-10d\n",
ptr->next->data.num,
ptr->next->data.name,
ptr->next->data.sex,
ptr->next->data.age,
ptr->next->data.educ,
ptr->next->data.salary,
ptr->next->data.adress,
ptr->next->data.phone);
count++;
flag = 1;
}
ptr = ptr->next;
}
if (flag)
printf("查询成功！共找到%d个与\"%s\"相关的职工。\n", count, ch);
else
printf("查询失败！查不到学历为\"%s\"的职工信息\n", ch);
}
//按职工号查询函数
void Search_num(struct NodeEmploy* headptr)
{
printf("请输入要查询的职工号：");
int num = 0;
int flag = 0;//标记用来表示是否查询成功
scanf("%d", &num);
//如果headptr->next==NULL则表示无职工信息
if (headptr->next == NULL)
{
printf("查询失败！职工信息表为空！\n");
return;
}
//由头结点开始遍历整个链表
//循环结束条件是结的next=NULL
struct NodeEmploy* ptr = headptr;
while (ptr->next != NULL)
{
if (ptr->next->data.num == num)
{
printf("工号：\t%4d姓名：\t%-5s性别：\t%-1s年龄：\t%3d学历：\t%-4s工资：\t%6d住址：\t%-10s电话：\t%-10d\n",
ptr->next->data.num,
ptr->next->data.name,
ptr->next->data.sex,
ptr->next->data.age,
ptr->next->data.educ,
ptr->next->data.salary,
ptr->next->data.adress,
ptr->next->data.phone);
flag = 1;
break;
}
ptr = ptr->next;
}
if (flag)
printf("查询成功！\n");
else
printf("查询失败！查无此人！");
}
//查询主函数
void Search(struct NodeEmploy*headptr)
{
int choice;
do
{
SearchMenu();
printf("请选择查询方式：");
scanf("%d", &choice);
switch (choice)
{
case 1://按职工号查询
Search_num(headptr);
break;
case 2://按学历查询
Search_educ(headptr);
break;
case 0://退出查询
break;
default:
printf("选择有误请重新选择！\n");
}
} while (choice != 0);
}
//删除职工信息
void Delete(struct NodeEmploy* headptr)
{
printf("请输入要删除的职工号：");
int num = 0;
int flag = 0;//标记用来表示是否查询成功
scanf("%d", &num);
//如果headptr->next==NULL则表示无职工信息
if (headptr->next == NULL)
{
printf("删除失败！职工信息表为空！\n");
return;
}
//由头结点开始遍历整个链表
//循环结束条件是结的next=NULL
struct NodeEmploy* ptr = headptr;
while (ptr->next != NULL)
{
if (ptr->next->data.num == num)
{
struct NodeEmploy* p = ptr->next;
ptr->next = ptr->next->next;
free(p);
p = NULL;
size--;
flag = 1;
break;
}
ptr = ptr->next;
}
if (flag)
{
printf("删除成功！\n");
printf("目前有%d个职工的信息。\n",size);
}
else
printf("查无此人！删除失败！\n");
}
//修改职工信息
void Correct(struct NodeEmploy* headptr)
{
printf("请输入要修改的职工号：");
int num = 0;
int choice = 0;
int flag = 0;//标记用来表示是否查询成功
scanf("%d", &num);
//如果headptr->next==NULL则表示无职工信息
if (headptr->next == NULL)
{
printf("修改失败！职工信息表为空！\n");
return;
}
//由头结点开始遍历整个链表
//循环结束条件是结的next=NULL
struct NodeEmploy* ptr = headptr;
while (ptr->next != NULL)
{
if (ptr->next->data.num == num)
{
printf("工号：\t%4d姓名：\t%-5s性别：\t%-1s年龄：\t%3d学历：\t%-4s工资：\t%6d住址：\t%-10s电话：\t%-10d\n",
ptr->next->data.num,
ptr->next->data.name,
ptr->next->data.sex,
ptr->next->data.age,
ptr->next->data.educ,
ptr->next->data.salary,
ptr->next->data.adress,
ptr->next->data.phone);
do
{
int i;
printf("请输入要修改的信息（工号:1/姓名:2/性别:3/年龄:4/学历:5/工资:6/住址:7/电话:8）：");
scanf("%d", &i);
switch (i)
{
case 1:
{
printf("请输入职工号：");
scanf("%d", &ptr->next->data.num);
break;
}
case 2:
{
printf("请输入职工姓名：");
scanf("%s", ptr->next->data.name);
break;
}
case 3:
{
printf("请输入职工性别(男/女)：");
scanf("%s", ptr->next->data.sex);
break;
}
case 4:
{
printf("请输入职工年龄：");
scanf("%d", &ptr->next->data.age);
break;
}
case 5:
{
printf("请输入职工学历：");
scanf("%s", ptr->next->data.educ);
break;
}
case 6:
{
printf("请输入职工工资：");
scanf("%d", &ptr->next->data.salary);
break;
}
case 7:
{
printf("请输入职工住址：");
scanf("%s", ptr->next->data.adress);
break;
}
case 8:
{
printf("请输入职工电话：");
scanf("%d", &ptr->next->data.phone);
break;
}
default:
printf("输入有误，请重新输入：\n");
}
printf("若要继续修改请按1，结束修改请按0：");
scanf("%d", &choice);
} while (choice);
flag = 1;
break;
}
ptr = ptr->next;
}
if (flag)
printf("修改成功！\n");
else
printf("查无此人！修改失败！\n");
}
//导入文件信息
void Downlode(struct NodeEmploy* headptr)
{
printf("导入文件中的职工信息中。。。。。。\n");
struct NodeEmploy* p1 = headptr;
FILE* pf = fopen("Employ.dat", "rb");//打开文件
if (pf == NULL)
{
printf("无可导入数据！");
return;
}
if (feof(pf))
{
printf("无可导入数据！");
return;
}
struct NodeEmploy* ptr = NULL;
do
{
ptr = (struct NodeEmploy*)malloc(sizeof(struct NodeEmploy));
if (ptr == NULL)
{
free(ptr);
printf("mallocError,导入失败！");
return;
}
else
{
p1->next = ptr;
size++;//size数量加1
ptr->next = NULL;
p1 = p1->next;
}
} while (fread(ptr, sizeof(struct NodeEmploy), 1, pf));
fclose(pf);
pf = NULL;
struct NodeEmploy* p = headptr;
while (p->next->next != NULL)
{
p = p->next;
}
free(p->next);
p->next = NULL;
size--;
printf("导入职工信息成功！\n");
printf("目前有%d个职工的信息！", size);
}
int main()
{
int choice;
//初始化链表
struct NodeEmploy headnode;
struct NodeEmploy* headptr=&headnode;
headnode.next=NULL;
size = 0;
Downlode(headptr);
//选择功能
do
{
//进入菜单界面
Menu();
printf("请选择功能：");
scanf("%d", &choice);
switch (choice)
{
case 1://职工录入
InputEmploy(headptr);
break;
case 2://浏览职工
Scan(headptr);
break;
case 3://查询职工
Search(headptr);
break;
case 4://删除职工
Delete(headptr);
break;
case 5://
Correct(headptr);
break;
case 6://
Save(headptr);
break;
case 0://
break;
default: //选择错误则重新选择
printf("选择错误，请重新选择：");
break;
}
} while (choice != 0);
return 0;
}标签：职工,代码,next,headptr,printf,信息管理系统,NULL,data,ptr 来源： https://blog.csdn.net/weixin_50256876/article/details/118245121