《C语言程序设计》课程设计
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发布时间：2022-04-22 00:45
共5个回答
热心网友
时间：2023-07-20 04:26
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<conio.h>
#define BUFFERSIZE 1024
#define MAXACCOUNT 1000
typedef struct BankAccount
{
int account;
int key;
char name[32];
float balance;
}BANKACCOUNT;
BANKACCOUNT accountCollection[MAXACCOUNT];
int curAccount = 0;
void InsertAccount(FILE *fp)
{
BANKACCOUNT newaccount;
printf("please input the account information\n");
printf(">>account num:");
scanf("%d",&(newaccount.account));
printf(">>key:");
scanf("%d",&(newaccount.key));
printf(">>name:");
scanf("%s",newaccount.name);
printf(">>balance:");
scanf("%f",&(newaccount.balance));
fseek(fp,0L,SEEK_END);
fprintf(fp,"%d %d %s %.2f\n",newaccount.account,newaccount.key,newaccount.name,newaccount.balance);
}
void GetAccount(FILE *fp)
{
int accountnum;
int key;
char name[32];
float balance;
int i =0,j;
char buffer[BUFFERSIZE];
int len;
curAccount = 0;
fseek(fp,0,SEEK_SET);
while(!feof(fp)) /* 因为feof()最后会读2遍，所以最后curAccount多加了1 */
{
fscanf(fp,"%d %d %s %f",&accountnum,&key,name,&balance);
accountCollection[curAccount].account = accountnum;
accountCollection[curAccount].key = key;
strcpy(accountCollection[curAccount].name ,name);
accountCollection[curAccount].balance = balance;
curAccount++;
}
}
void ListAccount(FILE *fp)
{
int i =0;
printf("There is %d accounts at all:\n",curAccount-1);/* curAccount减去多加的1 */
for(i = 0;i< curAccount-1;i++)
{
printf("ACCOUNT[%d]:\n",i+1);
printf("account:%d\n",accountCollection[i].account);
printf("name:%s\n",accountCollection[i].name);
printf("balance:%.2f\n",accountCollection[i].balance);
}
}
int SearchAccount(FILE *fp,int accountnum)
{
int i =0;
for(i = 0;i< curAccount-1;i++)
{
if(accountCollection[i].account == accountnum)
{
printf("ACCOUNT[%d]:\n",i+1);
printf("account:%d\n",accountCollection[i].account);
printf("name:%s\n",accountCollection[i].name);
printf("balance:%.2f\n",accountCollection[i].balance);
return 1;
}
}
return 0;
}
void DelAccount(FILE *fp,int accountnum)
{
int i;
if(SearchAccount(fp,accountnum)==0)
printf("Can't find the account\n");
else
{
for(i = 0;i<curAccount-1;i++)
{
if(accountCollection[i].account != accountnum)
fprintf(fp,"%d %d %s %.2f\n",accountCollection[i].account,accountCollection[i].key,accountCollection[i].name,accountCollection[i].balance);
}
printf("delete successfully!\n");
}
}
int main()
{
FILE *fp;
int accountnum;
int i;
do{
system("cls"); //清屏
puts("********************************************");
puts("* You can choose : *");
puts("* 1 : Insert a new Account *");
puts("* 2 : List all Accounts *");
puts("* 3 : Find a Account *");
puts("* 4 : Delete a Account *");
puts("* 5 : quit *");
puts("********************************************");
printf("Please input your choice:");
scanf("%d",&i);
system("cls"); //清屏
switch(i)
{
case 1:
if(!(fp = fopen("account.txt","a+")))
{
printf("can't open the file account.txt\n");
exit(0);
}
InsertAccount( fp);
printf("press any key to continue.....\n");
getch();
fclose(fp);
break;
case 2:
if(!(fp = fopen("account.txt","r")))
{
printf("can't open the file account.txt\n");
exit(0);
}
GetAccount(fp);
ListAccount(fp);
fclose(fp);
printf("press any key to continue.....\n");
getch();
break;
case 3:
printf("please input the account num:\n");
scanf("%d",&accountnum);
if(!(fp = fopen("account.txt","r")))
{
printf("can't open the file account.txt\n");
exit(0);
}
GetAccount(fp);
if(!SearchAccount(fp,accountnum))
printf("There is not the account:%d\n",accountnum);
fclose(fp);
printf("press any key to continue.....\n");
getch();
break;
case 4:
printf("please input the account num:\n");
scanf("%d",&accountnum);
if(!(fp = fopen("account.txt","r")))
{
printf("can't open the file account.txt\n");
exit(0);
}
GetAccount(fp);
fclose(fp);
if(!(fp = fopen("account.txt","w+")))
{
printf("can't open the file account.txt\n");
exit(0);
}
DelAccount(fp,accountnum);
fclose(fp);
printf("press any key to continue.....\n");
getch();
break;
default:
break;
}
}while(i != 5);
return 0;
}
账户数据文件名已经设定为account.txt，这个文件要和上面这个程序放在同一个文件夹下面，不然就得用绝对路径(比如"d:\\book\\account.txt")，account内容可以用记事本打开自己改动，然后运行程序后就可以在程序中添加或删除
热心网友
时间：2023-07-20 04:26
发，消，息给你，了
热心网友
时间：2023-07-20 04:27
给钱不
热心网友
时间：2023-07-20 04:28
#include
#include
#include
#include
#define
BUFFERSIZE
1024
#define
MAXACCOUNT
1000
typedef
struct
BankAccount
{
int
account;
int
key;
char
name[32];
float
balance;
}BANKACCOUNT;
BANKACCOUNT
accountCollection[MAXACCOUNT];
int
curAccount
=
0;
void
InsertAccount(FILE
*fp)
{
BANKACCOUNT
newaccount;
printf("please
input
the
account
information\n");
printf(">>account
num:");
scanf("%d",&(newaccount.account));
printf(">>key:");
scanf("%d",&(newaccount.key));
printf(">>name:");
scanf("%s",newaccount.name);
printf(">>balance:");
scanf("%f",&(newaccount.balance));
fseek(fp,0L,SEEK_END);
fprintf(fp,"%d
%d
%s
%.2f\n",newaccount.account,newaccount.key,newaccount.name,newaccount.balance);
}
void
GetAccount(FILE
*fp)
{
int
accountnum;
int
key;
char
name[32];
float
balance;
int
i
=0,j;
char
buffer[BUFFERSIZE];
int
len;
curAccount
=
0;
fseek(fp,0,SEEK_SET);
while(!feof(fp))
/*
因为feof()最后会读2遍，所以最后curAccount多加了1
*/
{
fscanf(fp,"%d
%d
%s
%f",&accountnum,&key,name,&balance);
accountCollection[curAccount].account
=
accountnum;
accountCollection[curAccount].key
=
key;
strcpy(accountCollection[curAccount].name
,name);
accountCollection[curAccount].balance
=
balance;
curAccount++;
}
}
void
ListAccount(FILE
*fp)
{
int
i
=0;
printf("There
is
%d
accounts
at
all:\n",curAccount-1);/*
curAccount减去多加的1
*/
for(i
=
0;i<
curAccount-1;i++)
{
printf("ACCOUNT[%d]:\n",i+1);
printf("account:%d\n",accountCollection[i].account);
printf("name:%s\n",accountCollection[i].name);
printf("balance:%.2f\n",accountCollection[i].balance);
}
}
int
SearchAccount(FILE
*fp,int
accountnum)
{
int
i
=0;
for(i
=
0;i<
curAccount-1;i++)
{
if(accountCollection[i].account
==
accountnum)
{
printf("ACCOUNT[%d]:\n",i+1);
printf("account:%d\n",accountCollection[i].account);
printf("name:%s\n",accountCollection[i].name);
printf("balance:%.2f\n",accountCollection[i].balance);
return
1;
}
}
return
0;
}
void
DelAccount(FILE
*fp,int
accountnum)
{
int
i;
if(SearchAccount(fp,accountnum)==0)
printf("Can't
find
the
account\n");
else
{
for(i
=
0;i
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热心网友
时间：2023-07-20 04:28
参考此处
http://hi.baidu.com/yanggq/blog/item/b6b7c3131cc01b28dd5401c1.html
