实验室设备管理系统c语言程序设计_设备管理系统怎么实现

#include <stdio.h>
#include <malloc.h>
#include <stdlib.h>
typedef struct equipment{
int num;   //编号
char name[20];  //名称
char model[20];     //型号
char factory[20];   //厂家
char buy_date[20];  //购买日期
struct equipment *next;
char repair_time[20];
}Equipment;
void fprintE(Equipment *head);  //将设备信息输出到文件
void addEquipment(Equipment *head);     //添加设备
void deleteEquipment(Equipment *head,int num);  //删除设备
void changeEquipment(Equipment *head,int num);  //更新设备
void findEquipment();   //设备查找
Equipment* fscanE();  //从文件读取设备信息
void repairEquipment();     // 维修管理
void printList(Equipment *head);   //输出设备信息列表
int checkNum(Equipment *head, int num);
//将设备信息输出到文件
void addEquipment(Equipment *head){
Equipment *tail = head;
while(tail->next!=NULL) tail = tail->next;
Equipment *newnode = (Equipment*)malloc(sizeof(Equipment));
printf("请输入设备编号：");
scanf("%d",&newnode->num);
if(checkNum(head,newnode->num)){
printf("输入编号已有，输入失败！");
return;
}
printf("请输入设备名称：");
scanf("%s",&newnode->name);
printf("请输入设备型号：");
scanf("%s",&newnode->model);
printf("请输入设备厂家：");
scanf("%s",&newnode->factory);
printf("请输入设备购买日期：");
scanf("%s",&newnode->buy_date);
tail->next = newnode;
newnode->next = NULL;
fprintE(head);
printf("录入成功！");
}
//将链表输入到文件
void fprintE(Equipment *head){
FILE *fp=fopen("data.txt","w");
Equipment *current = head->next;
while(current){
fprintf(fp,"%d\n",current->num);
fprintf(fp,"%s\n",current->name);
fprintf(fp,"%s\n",current->model);
fprintf(fp,"%s\n",current->factory);
fprintf(fp,"%s\n",current->buy_date);
//printf("%d %s %s %s %s ",current->num,current->name,current->model,current->factory,current->buy_date);
current = current->next;
}
fclose(fp);
}
//删除设备
void deleteEquipment(Equipment *head,int num){
if(head->next==NULL){
printf("没有设备！请先录入设备！");
return;
}
Equipment *current = head;
Equipment *current_next = current->next;
while(current_next){
if(current_next->num==num){
current->next = current_next->next;
printf("删除成功！");
fprintE(head);
return;
}
current = current->next;
current_next = current_next->next;
}
printf("删除失败，没有找到设备编号！");
}
//设备更新
void changeEquipment(Equipment *head,int num){
if(head->next==NULL){
printf("没有设备！请先录入设备！");
return;
}
Equipment *current = head->next;
while(current && (current->num!=num)){
current = current->next;
}
if(current!=NULL){
printf("请输入更新后的数据：\n");
printf("请输入设备编号：");
scanf("%d",¤t->num);
printf("请输入设备名称：");
scanf("%s",¤t->name);
printf("请输入设备型号：");
scanf("%s",¤t->model);
printf("请输入设备厂家：");
scanf("%s",¤t->factory);
printf("请输入设备购买日期：");
scanf("%s",¤t->buy_date);
fprintE(head);
}else{
printf("操作失败，没有找到设备编号！");
}
}
//设备查找
void findEquipment(){
Equipment *head = fscanE();
if(head->next==NULL){
printf("没有设备！请先录入设备！");
return;
}
int num;
printf("请输入查找设备的编号：");
scanf("%d",&num);
while(head){
if(head->num==num){
printf("编号为%d的信息为：\n",num);
printf("编号：%d\n",head->num);
printf("名称：%s\n",head->name);
printf("型号：%s\n",head->model);
printf("厂家：%s\n",head->factory);
printf("生产日期：%s\n",head->buy_date);
return;
}
head = head->next;
}
printf("查找失败，没有找到设备编号！");
}
//从文件读取设备信息
Equipment* fscanE(){
Equipment *head1 = (Equipment*)malloc(sizeof(Equipment));
head1->next = NULL;
Equipment *current = head1;
FILE *fp = fopen("data.txt","r");
while(!feof(fp)){
Equipment *newnode = (Equipment*)malloc(sizeof(Equipment));
fscanf(fp,"%d\n",&newnode->num);
fscanf(fp,"%s\n",newnode->name);
fscanf(fp,"%s\n",newnode->model);
fscanf(fp,"%s\n",newnode->factory);
fscanf(fp,"%s\n",newnode->buy_date);
current->next = newnode;
newnode->next = NULL;
current = current->next;
}
close(fp);
return head1;
}
//维修信息管理
void repairEquipment(){
int num;
int oper;
char time[16];
printf("请输入维修操作（1~2）：\n1.记录\t2.查找\n");
scanf("%d",&oper);
getchar();
switch(oper){
case 1:{
FILE *fp = fopen("myfile.txt","a");
printf("请输入维修编号：");
scanf("%d",&num);
printf("请输入维修时间（xxxx-xx-xx）:");
scanf("%s",&time);
fprintf(fp,"%d\n",num);
fprintf(fp,"%s\n",time);
fflush(fp);
close(fp);
printf("记录成功！");
break;
}case 2:{
int t = 0;
printf("请输入查找编号：");
scanf("%d",&num);
int rnum;
FILE *fp = fopen("myfile.txt","r");
while(!feof(fp)){
fscanf(fp,"%d\n",&rnum);
fscanf(fp,"%s\n",&time);
if(rnum==num){
printf("编号：%d，维修时间：%s\n",rnum,time);
t = 1;
}
}
if(t==0){
printf("查询错误，没有找到维修记录！");
}
close(fp);
break;
}
default:{
printf("输入有误，操作失败！");
}
}
}
//输出设备信息列表
void printList(Equipment *head){
if(head->next==NULL){
printf("没有设备，请先录入设备！");
return;
}
Equipment *current = head->next;
printf("=====================================================\n");
printf("    编号  名称  型号      厂家      生产日期  \n");
while(current){
printf("\t%d\t%s\t%s\t%s\t%s\n",current->num,current->name,current->model,current->factory,current->buy_date);
current = current->next;
}
printf("===================================================\n");
}
//检查设备编号是否相同
int checkNum(Equipment *head, int num){
if(head->next==NULL) return 0;
Equipment *current = head->next;
while(current){
if(current->num == num){
return 1;
}
current = current->next;
}
return 0;
}
int main(){
Equipment *head = (Equipment*)malloc(sizeof(Equipment));
head->next = NULL;
int num = -1;
while(num!=0){
printf("~~~~~~~~~~~~~欢迎进入实验室设备管理系统！~~~~~~~~~~~\n");
printf("\n~~~~~~~~~~请输入您选择的操作（0~7）：~~~~~~~~~~~~~~\n");
printf("1.设备信息录入\t2.设备信息更改\t");
printf("3.设备信息删除\n4.设备查找\t5.维修记录管理\t6.显示所有设备\n\t7.关于\t\t\t0.退出\n");
printf("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n");
scanf("%d",&num);
int num1;
system("cls");
switch(num){
case 0:{break;}
case 1:{
addEquipment(head);
break;
}
case 2:{
printf("请输入更改信息的设备编号：");
scanf("%d",&num1);
getchar();
changeEquipment(head,num1);
break;
}
case 3:{
printf("请输入需要删除的设备编号：");
scanf("%d",&num1);
getchar();
deleteEquipment(head,num1);
break;
}
case 4:{
findEquipment();
break;
}
case 5:{
repairEquipment();
break;
}case 6:{
printList(head);
break;
}case 7:{
printf("*************************************\n");
printf("\t实验名称：实验室设备管理系统\n");
printf("\t系统版本：2.0\n");
printf("\t系统作者：pisces_hao\n");
printf("*************************************\n");
break;
}
default:{
printf("输入有误，操作失败！");
}
}
system("Pause");
system("cls");
}
return 0;
}