這個是我的一個網上朋友寫的，僅供大家參考：
在這里留個記錄
#include<stdio.h>
#include<string.h>
#define null 0
#define max 20
#define ok 1
struct record{
char date[20];
char operate[20];
int num;
};
struct list_record{
char account[20];
char code[20];
char name[20];
int rec_len;
struct record rec[max];
}r[max];
//系統原有數據，用戶不可知
int old_record( struct list_record r[])
{
int i;
for(i=0;i<5;i++)
r[i].rec_len=5;
strcpy(r[0].account,"ydf");
strcpy(r[1].account,"lzc");
strcpy(r[2].account,"lwd");
strcpy(r[3].account,"to");
strcpy(r[4].account,"cy");
strcpy(r[0].code,"111111");
strcpy(r[1].code,"111111");
strcpy(r[2].code,"111111");
strcpy(r[3].code,"111111");
strcpy(r[4].code,"111111");
strcpy(r[0].name ,"袁大富");
strcpy(r[1].name ,"林禎誠");
strcpy(r[2].name ,"李魏東");
strcpy(r[3].name ,"唐歐");
strcpy(r[4].name ,"陳陽");
strcpy(r[0].rec[0].date,"13-01-01");
strcpy(r[0].rec[1].date,"13-02-01");
strcpy(r[0].rec[2].date,"13-03-01");
strcpy(r[0].rec[3].date,"13-04-01");
strcpy(r[1].rec[0].date,"13-01-02");
strcpy(r[1].rec[1].date,"13-02-02");
strcpy(r[1].rec[2].date,"13-03-02");
strcpy(r[1].rec[3].date,"13-04-02");
strcpy(r[2].rec[0].date,"13-01-03");
strcpy(r[2].rec[1].date,"13-02-03");
strcpy(r[2].rec[2].date,"13-03-03");
strcpy(r[2].rec[3].date,"13-04-03");
strcpy(r[3].rec[0].date,"13-01-04");
strcpy(r[3].rec[1].date,"13-02-04");
strcpy(r[3].rec[2].date,"13-03-04");
strcpy(r[3].rec[3].date,"13-04-04");
strcpy(r[4].rec[0].date,"13-01-05");
strcpy(r[4].rec[1].date,"13-02-05");
strcpy(r[4].rec[2].date,"13-03-05");
strcpy(r[4].rec[3].date,"13-04-05");
strcpy(r[0].rec[0].operate,"in");
strcpy(r[0].rec[1].operate,"out");
strcpy(r[0].rec[2].operate,"in");
strcpy(r[0].rec[3].operate,"out");
strcpy(r[1].rec[0].operate,"out");
strcpy(r[1].rec[1].operate,"in");
strcpy(r[1].rec[2].operate,"out");
strcpy(r[1].rec[3].operate,"in");
strcpy(r[2].rec[0].operate,"in");
strcpy(r[2].rec[1].operate,"out");
strcpy(r[2].rec[2].operate,"in");
strcpy(r[2].rec[3].operate,"out");
strcpy(r[3].rec[0].operate,"in");
strcpy(r[3].rec[1].operate,"out");
strcpy(r[3].rec[2].operate,"in");
strcpy(r[3].rec[3].operate,"out");
strcpy(r[4].rec[0].operate,"in");
strcpy(r[4].rec[1].operate,"out");
strcpy(r[4].rec[2].operate,"in");
strcpy(r[4].rec[3].operate,"out");
r[0].rec[0].num=3000;
r[0].rec[1].num=-1500;
r[0].rec[2].num=2500;
r[0].rec[3].num=-1000;
r[1].rec[0].num=-3000;
r[1].rec[1].num=5000;
r[1].rec[2].num=-1000;
r[1].rec[2].num=2000;
r[2].rec[0].num=1000;
r[2].rec[1].num=-1500;
r[2].rec[2].num=3000;
r[2].rec[2].num=-500;
r[3].rec[0].num=1000;
r[3].rec[1].num=-1500;
r[3].rec[2].num=4000;
r[3].rec[2].num=-500;
r[4].rec[0].num=1000;
r[4].rec[1].num=-1500;
r[4].rec[2].num=2000;
r[4].rec[3].num=-500;
return ok;
}
//將數據寫入文件
void save( )
{FILE *fp;
int i;
if((fp=fopen("wenjian","wb"))==null)
{printf("can not open the file.\n");
return;
}
for(i=0;i<max;i++)
if(fwrite(&r[i],sizeof(struct list_record),1,fp)!=1)
printf("file write error.\n");
fclose(fp);
}
//文件讀出
void load( )
{FILE *fp;
int i;
if((fp=fopen("wenjian","rb"))==null)
{printf("can not open infile.\n");
return;
}
for(i=0;i<max;i++)
if(fread(&r[i],sizeof(struct list_record),1,fp)!=1)
{if(feof(fp))
(fclose(fp));
return;
}
fclose(fp);
}
//將用戶輸入的帳號與系統中原有帳號比較，查找用戶帳號
int lookup_accounts( struct list_record r[],char acc[])
{
int i;
for(i=0;i<5;i++)
if(strcmp(r[i].account,acc)==0)
{
return ok;
}
printf("帳號不存在，請重新輸入！\n");
return null;
}
//檢查密碼函數
struct list_record check_code(struct list_record r[],char acc[],char c[])
{
int i;
struct list_record a;
strcpy(a.account,"0");
strcpy(a.code,"0");
a.rec_len=0;
for(i=0;i<a.rec_len;i++)
{
strcpy(a.rec[i].date,"0");
strcpy(a.rec[i].operate,"0");
a.rec[i].num=0;
}
for(i=0;i<5;i++)
if(strcmp(r[i].account,acc)==0)
if(strcmp(r[i].code,c)==0)
return r[i];
printf("the code is wrong,please input again!\n");
return a;
}
//顯示用戶基本信息
void print_message( struct list_record *p)
{printf("姓名:%s\n",p->name);
printf("帳號:%s\n",(*p).account);
}
//根據用戶輸入的日期，查找記錄
int find_record( struct list_record *p,char d[])
{
int i;
for(i=0;i<(*p).rec_len;i++)
{
if(strcmp((*p).rec[i].date,d)==0)
{
printf("date operate money\n");
printf("%s ",(*p).rec[i].date);
printf("%s ",(*p).rec[i].operate);
printf("%d \n",(*p).rec[i].num);
return ok;
}
}
if(i==(*p).rec_len)
printf("the date is not exit!\n");
return null;
}
//插入函數，根據用戶輸入的信息，增加記錄
int insert_record( struct list_record *p,struct record *p1,int lop)
{
int i;
if((lop<1)||(lop>((*p).rec_len+1)))
{
printf("the position is wrong.\n");
return 0;
}
else
{
for(i=(*p).rec_len;i>lop-1;i--)
{
strcpy((*p).rec[i].date,(*p).rec[i-1].date);
strcpy((*p).rec[i].operate,(*p).rec[i-1].operate);
(*p).rec[i].num=(*p).rec[i-1].num;
}
strcpy(p->rec[i].date,p1->date);
strcpy((*p).rec[i].operate,(*p1).operate);
(*p).rec[i].num=(*p1).num;
(*p).rec_len++;
return ok;
}
}
// 刪除記錄函數
int del_record(struct list_record *p,int lop2)
{
int i;
if((lop2<1)||(lop2>(*p).rec_len))
{
printf("the position is wrong.\n");
return null;
}
else
{
for(i=lop2-1;i<(*p).rec_len-1;i++)
{
strcpy((*p).rec[i].date,(*p).rec[i+1].date);
strcpy((*p).rec[i].operate,(*p).rec[i+1].operate);
(*p).rec[i].num=(*p).rec[i+1].num;
}
(*p).rec_len--;
return ok;
}
}
//輸出全部記錄函數
void all_print( struct list_record *p)
{ int i;
printf("date operate num\n");
for(i=0;i<(*p).rec_len;i++)
{ printf("%s ",(*p).rec[i].date);
printf("%s ",(*p).rec[i].operate);
printf("%d ",(*p).rec[i].num);
printf("\n");
}
}
//計算總的錢數
int sum_num( struct list_record *p)
{
int i;
int sum=0;
int sum_in=0;
int sum_out=0;
for(i=0;i<(*p).rec_len;i++)
{
sum+=(*p).rec[i].num;
if((*p).rec[i].num>0)
sum_in+=(*p).rec[i].num;
if((*p).rec[i].num<0)
sum_out+=(*p).rec[i].num;
}
printf("總余額為: %d\n",sum);
printf("總收入為: %d\n",sum_in);
printf("總支出為: %d\n",sum_out);
return ok;
}
//輸出收入記錄
int acc_print( struct list_record *p)
{
int i;
int sum_acc=0;
printf("date operate num\n");
for(i=0;i<(*p).rec_len;i++)
if((*p).rec[i].num>0)
{
sum_acc+=(*p).rec[i].num;
printf("%s ",(*p).rec[i].date);
printf("%s ",(*p).rec[i].operate);
printf("%d ",(*p).rec[i].num);
printf("\n");
}
printf("總收入金額為: %d\n",sum_acc);
return ok;
if(sum_acc==0)
printf("there is no account.\n");
return null;
}
//輸出支出記錄
int pay_print( struct list_record *p)
{int i;
int sum_pay=0;
printf("date operate num\n");
for(i=0;i<p->rec_len;i++)
if((*p).rec[i].num<0)
{
sum_pay+=(*p).rec[i].num;
printf("%s ",(*p).rec[i].date);
printf("%s ",(*p).rec[i].operate);
printf("%d ",(*p).rec[i].num);
printf("\n");
}
printf("總的支出為: %d\n",sum_pay);
return ok;
if(sum_pay==0)
printf("there is no payout.\n");
return null;
}
void main( )
{
int j=0,n=0;
int x,k,lop1,lop2;
char data1[20];
char accou[20],cod[20];
struct record *p0;
struct record a;
struct list_record b;
struct list_record *p;
b.rec_len=0;
p0=&a;
old_record(r);
save();
load();
while(k)
{
printf(" 歡迎使用個人財政支出管理系統！\n");
printf(" -----首字母修改版\n");
printf("------------------------------------------------------------\n");
printf("| |\n");
printf("| 1、登陸系統 |\n");
printf("| 0、退出系統 |\n");
printf("| |\n");
printf("------------------------------------------------------------\n");
scanf("%d",&x);
if(x==0)
{
printf(" 感謝您使用本系統，再見！\n");
break;
}
else
{
do
{
printf("請輸入帳號：");
scanf("%s",accou);
if(lookup_accounts(r,accou))
{ printf("請輸入密碼：");
scanf("%s",cod);
b=check_code(r,accou,cod);
if(b.rec_len==0)
{do
{
b=check_code(r,accou,cod);
scanf("%s",cod);
n++;
}while(n<3);
if(n=3)
printf("您已連續四次輸入錯誤密碼，請退出系統，謝謝使用，再見！\n");
break;
}
else
{
int mark=0;//設置標志位 用於標記是否退出
do
{
if(mark==1)
break;
printf("---------------請選擇您要進行的操作-------------------\n");
printf("| |\n");
printf("| 2、查找記錄 |\n");
printf("| 3、增加記錄 |\n");
printf("| 4、刪除記錄 |\n");
printf("| 5、輸出所有記錄 |\n");
printf("| 6、輸出所有收入記錄 |\n");
printf("| 7、輸出所有支出記錄 |\n");
printf("| 8、退出個人財務網站 |\n");
printf("| |\n");
printf("-----------------------------------------------------|\n");
p=&b;
print_message(p);
scanf("%d",&k);
if(k==10)
printf("感謝您使用本系統，再見！\n");
if(k==2)
{
printf("請輸入您要查詢的日期：");
scanf("%s",data1);
find_record(p,data1);
}
if(k==3)
{
printf("請輸入你要插入的位置：\n");
scanf("%d",&lop1);
printf("請輸入您要添加的記錄：\n");
printf("日期：");
scanf("%s",p0->date);
printf("操作：");
scanf("%s",p0->operate);
printf("金額：");
scanf("%d",&(p0->num));
insert_record(p,p0,lop1);
}
if(k==4)
{
printf("請輸入您要刪除的記錄的位置：\n");
scanf("%d",&lop2);
del_record(p,lop2);
}
if(k==5)
{
all_print(p);
sum_num(p);
}
if(k==6)
acc_print(p);
if(k==7)
pay_print(p);
if(k==8)
{
mark=1;
}
}while(k>0);
break;
}
}
j++;
}while(j<3);
}printf("感謝您使用本系統，再見！\n");
printf("-----------------------------------------------------\n\n");
}
}