C语言课程设计院系:姓名:学号:班号:指导教师:日期:目录一.题目要求 (1)二.需求分析 (1)三.总体设计 (1)四.详细设计 (1)五.完整程序 (12)六.上机操作 (21)七.结束语 (24)一.题目要求实验设备信息包括:设备编号,设备种类(如:微机、打印机、扫描仪等等),设备名称,设备价格,设备购入日期等。
试设计一实验设备信息管理系统,使之能提供以下功能:(1)能够完成对设备的录入和修改(2)对设备进行分类统计(3)设备的查询二.需求分析实验室设备信息用文件存储,提供文件的输入输出操作;要能够完成设备的录入和修改,需要提供设备添加和修改操作;实现对设备进行分类统计,需要提供排序操作;实现对设备的插叙需要提供查找操作,设备的查询可根据设备编号、设备种类、设备名称、设备购入日期、正常设备(未报废的)等多种方式查询;另外还要提供键盘式选择菜单以实现功能选择。
三.总体设计根据上面的需求分析,可以将这个系统的设计分为以下模块四.详细设计1.主函数[流程图]显示一系列功能选项输入n,判断n是否是0-6 根据n的值调用各功能模块函数NY 实验设备管理系统信息输入信息添加信息修改信息统计信息搜索[程序]main() /*********************主函数***********************************/ {int n,w,t;for(t=0;t<1;t++)1{do{puts("\t\t*******MENU*******\n\n");puts("\t\t 1.Enter new data");puts("\t\t 2.Addition data");puts("\t\t 3.Modify data");puts("\t\t 4.Statist ");puts("\t\t 5.Search");puts("\t\t 6.Exit");puts("\n\n\t\t*****************\n");printf("What do you want to do(1-6):");scanf("%d",&n);if(n<1||n>6) /*对选择的数字作出判断*/{ w=1;getchar();}else w=0;}while(w==1);switch(n){case 1:t=enter();break; /*输入模块*/case 2:t=enter(); break; /*追加模块*/case 3:t=modifty();break; /*修改模块*/case 4:t=total();break; /*统计模块*/case 5:t=search();break; /*搜索模块*/case 6:exit(0); /*退出*/}}2.各功能模块设计(1)输入模块[流程图]输入用户要输入设备的个数i输入设备的各项详细信息将输入的信息存储到文件中[程序]/*********************输入模块*****************************/ 2 int enter() /*输入模块*/{FILE *fp;EQ newequ;int i,j;int c;printf("**************************************\n");printf("Add new equiment\n");printf("**************************************\n");printf("How many equiments do you want to add?\n");scanf("%d",&i); /*输入要输入的设备个数*/for(j=0;j<i;j++){printf("------------------\n");printf("Input equipcode\n");scanf("%s",newequ.equipCode);printf("Input equiptype\n");scanf("%s",newequ.equipType);printf("Input equipname\n");scanf("%s",newequ.equipName);printf("Input equipPrice\n");scanf("%f",&newequ.equipPrice);printf("Input buyYear\n");scanf("%d",&newequ.buyYear);printf("Input buyMonth\n");scanf("%d",&newequ.buyMonth);printf("Input buyDay\n");scanf("%d",&newequ.buyDay);printf("Input scrap\n");scanf("%d",&newequ.scrap);printf("Input scrapYear\n");scanf("%d",&newequ.scrapYear);printf("Input scrapMonth\n");scanf("%d",&newequ.scrapMonth);printf("Input scrapDay\n");scanf("%d",&newequ.scrapDay);if((fp=fopen("test.txt","w"))==NULL) /*打开文件,输入保存*/{printf("Can not open file!\n");} 3fprintf(fp,"%s %s %s %f %d %d %d %d %d %d %d",newequ.equipCode,newequ.equipType,newequ.equipName,newequ.equipPrice,newequ.buyYear,newequ.buyMonth,newequ.buyDay,newequ.scrap,newequ.scrapYear,newequ.scrapMonth,newequ.scrapDay);fclose(fp);printf("\n-----------------------\n");printf("Return to main menu? \n");printf("1.YES \n");printf("2.NO,I want to quit now\n");scanf("%d",&c);if(c==1)return(-1);if(c==2)return(0); /*任务结束选择是返回主菜单还是跳出*/}}(2)追加模块[流程图][程序]/*********************追加模块*****************************/ int enter() /*追加模块*/{FILE *fp;EQ newequ;int i,j;int c;printf("**************************************\n");printf("Add new equiment\n");printf("**************************************\n");printf("How many equiments do you want to add?\n");scanf("%d",&i); /*输入要追加的设备个数*/for(j=0;j<i;j++)4{printf("------------------\n");printf("Input equipcode\n");scanf("%s",newequ.equipCode); printf("Input equiptype\n");scanf("%s",newequ.equipType); printf("Input equipname\n"); scanf("%s",newequ.equipName);printf("Input equipPrice\n"); scanf("%f",&newequ.equipPrice); printf("Input buyYear\n");scanf("%d",&newequ.buyYear); printf("Input buyMonth\n");scanf("%d",&newequ.buyMonth); printf("Input buyDay\n");scanf("%d",&newequ.buyDay);printf("Input scrap\n");scanf("%d",&newequ.scrap); printf("Input scrapYear\n");scanf("%d",&newequ.scrapYear);printf("Input scrapMonth\n");scanf("%d",&newequ.scrapMonth);printf("Input scrapDay\n");scanf("%d",&newequ.scrapDay);if((fp=fopen("test.txt","w"))==NULL) /*打开文件,输入保存*/{printf("Can not open file!\n");}fprintf(fp,"%s %s %s %f %d %d %d %d %d %d %d",newequ.equipCode,newequ.equipType,newequ.equipName,newequ.equipPrice,newequ.buyYear,newequ.buyMonth,newequ.buyDay,newequ.scrap,newequ.scrapYear,newequ.scrapMonth,newequ.scrapDay);fclose(fp);printf("\n-----------------------\n");printf("Return to main menu? \n");printf("1.YES \n");printf("2.NO,I want to quit now\n");scanf("%d",&c); 5 if(c==1)return(-1);if(c==2)return(0); /*任务结束选择是返回主菜单还是跳出*/}}(3)修改模块[需求分析]此模块可以根据客户需要对以记录在文件中的信息进行修改[流程图][程序]/*******************************修改模块*********************/ int modifty()/*修改模块*/{EQ equ[50];char code[10];int i,j,c;输入要修改的设备编号是否找到该设备资料显示找到的记录,调用修改函数显示没有找到对该设备的信息进行修改返回主菜单返回主菜单ynFILE *fp;printf("*************************************\n");printf("Modifty for the equiment\n");printf("*************************************\n");printf("Please input the equipcode for modiftying\n");scanf("%s",code); /*输入要修改的设备编号*/printf("------------------------------------\n");if((fp=fopen("test.txt","r"))==NULL){ 6 printf("\nCan not open test!\n");}for(i=0;!feof(fp);i++){fscanf(fp,"%s %s %s %f %d %d %d %d %d %d %d",equ[i].equipCode,equ[i].equipType,equ[i].equipName,&equ[i].equipPrice,&equ[i].buyYear,&equ[i].buyMonth,&equ[i].buyDay,&equ[i].scrap,&equ[i].scrapYear,&equ[i].scrapMonth,&equ[i].scrapDay);if(strcmp(equ[i].equipCode,code)==0){printf("------------------\n");printf("Input new equipcode\n"); scanf("%s",equ[i].equipCode); printf("Input new equiptype\n"); scanf("%s",equ[i].equipType); printf("Input new equipname\n"); scanf("%s",equ[i].equipName); printf("Input equipPrice\n"); scanf("%f",&equ[i].equipPrice);printf("Input new buyYear\n"); scanf("%d",&equ[i].buyYear); printf("Input new buyMonth\n"); scanf("%d",&equ[i].buyMonth); printf("Input new buyDay\n"); scanf("%d",&equ[i].buyDay);printf("Input new scrap\n"); scanf("%d",&equ[i].scrap);printf("Input new scrapYear\n"); scanf("%d",&equ[i].scrapYear); printf("Input new scrapMonth\n");scanf("%d",&equ[i].scrapMonth);printf("Input new scrapDay\n");scanf("%d",&equ[i].scrapDay);}} /*将修改后的信息写如文件中*/fclose(fp);j=i;if((fp=fopen("test.txt","w"))==NULL){printf("\nCan not open test!\n");} 7 for(i=0;i<j;i++){printf("\nwrite!\n");fprintf(fp,"%s %s %s %f %d %d %d %d %d %d %d",equ[i].equipCode,equ[i].equipType,equ[i].equipName,equ[i].equipPrice,equ[i].buyYear,equ[i].buyMonth,equ[i].buyDay,equ[i].scrap,equ[i].scrapYear,equ[i].scrapMonth,equ[i].scrapDay);}fclose(fp);printf("\n-----------------------\n");printf("Return to main menu? \n");printf("1.YES \n");printf("2.NO,I want to quit now\n");scanf("%d",&c);if(c==1)return(-1);if(c==2)return(0);}(4)统计模块[需求分析]将已经输入的设备信息进行统计,并显示设备总数、价格总额等信息[流程图][程序] int total() { 打开文件,并对文件中的设备信息进行统计计算输出统计结果返回主菜单int c;float sum=0;int count=0;float aver=0;char type[20];EQ equ;int i;FILE *fp;if((fp=fopen("test.txt","r"))==NULL){printf("\nWrong\n");} 8printf("please input equipType:\n");scanf("%s",type);for(i=0;!feof(fp);i++){fscanf(fp,"%s %s %s %f %d % d %d %d %d %d %d",equ.equipCode,equ.equipType,equ.equipName,&equ. equipPrice,&equ.buyYear,&equ.buyMonth,&equ.buyDay,&equ.scrap,&equ.scrapYear,&equ.scrapMonth,&equ.scrapDay);printf("\nOK!\n");printf("%s,%s,%s,%f,%d,%d,% d,%d,%d,%d,%d\n",equ.equipCode,equ.equipType,equ.equipName,equ.equi pPrice,equ.buyYear,equ.buyMonth,equ.buyDay,equ.scrap,equ.scrapYear,equ.s crapMonth,equ.scrapDay);if(strcmp(equ.equipType,type) ==0){count++;sum+=equ.equipPrice;aver=sum/count;}}fclose(fp);printf("----------Statist--Result-----------");printf("\n\nthe number of this type is:%d",count);printf("\n\nthe total sum of price is:%f",sum);printf("\n\nthe aver of total price is:%f",aver);printf("\nPress any key to exit......");getch();printf("\n-----------------------\n");printf("Return to main menu? \n");printf("1.YES \n");printf("2.NO,I want to quit now\n");scanf("%d",&c);if(c==1)return(-1);if(c==2)return(0);}(5)搜索模块9 [需求分析]该模块的功能是查找用户需要的对应记录,可以分别根据设备编号、设备种类、设备名称、设备购入日期、正常设备(未报废的)等多种方式查询。