C語言銀行儲蓄系統源碼

#include <stdio.h> 
#include <stdlib.h> 
#include <conio.h> 
#include <string.h> 
void openaccount();//開戶 
void save();//存款 
void withdraw();//取款 
void showAccount();//查詢 
void transferAccounts();//轉賬 
void reportLoss(); //掛失 
void cancelLoss(); //解除掛失 
void cancelAccount(); //注銷賬戶 
void updatePassword();  //更改密碼 
int load();//登陸賬號 
int accountnum=0;//定義全局變量，用來計算賬戶數目 
int nowaccount=0;//登錄成功是的賬戶 
struct Bank 
{ 
  char account[20]; //賬號 
  char password[10]; //密碼 
  char name[20];  //用戶名 
  int balance;//賬戶余額 
  int state;//狀態 
};  //結構體 
struct Bank banks[100]; 
int load() 
{ 
  int right=0,i=0,j; 
  int r1,r2; 
  char ch; 
  char account1[20]= {0}; 
  char password1[10]= {0}; 
  printf("登陸\n請輸入賬號：\n"); 
  scanf("%s",account1); 
  printf("請輸入密碼：\n"); 
  while((ch=getch())!='\r') 
  { 
    password1[i++]=ch; 
    putchar('*'); 
  } 
  for(j=0; j<accountnum; j++) 
  { 
    r1=strcmp(account1,banks[j].account); 
    r2=strcmp(password1,banks[j].password); 
    if(r1==0&&r2==0) 
    { 
      nowaccount=j; 
      if(banks[j].state==0) 
      { 
        printf("登錄成功！\n");//登錄成功 
        right=1; 
      } 
      else if(banks[j].state==1) 
      { 
        printf("您的賬戶處于掛失狀態,請解掛\n"); 
        right=3; 
      } 
      else if(banks[j].state==2) 
      { 
        printf("賬戶已經銷戶\n"); 
        right=2; 
      } 
      break; 
    } 
  } 
 
  if(right==0) 
    printf("登陸失??！\n"); 
  return right; 
} 
int main() 
{ 
  int i=0,num; 
  char a[100]; 
  FILE *fp; 
  if((fp=fopen("account.txt","r"))==NULL) 
  { 
    if((fp=fopen("account.txt","w"))==NULL) 
    { 
      printf("失??！\n"); 
      exit(1); 
    } 
  } 
  while(fscanf(fp,"%s%s%s%d%d",banks[i].account,banks[i].name,banks[i].password,&banks[i].balance,&banks[i].state)!=EOF) 
  { 
    accountnum++; 
    i++; 
  } 
  fclose(fp); 
  printf("歡迎來到我的銀行\n"); 
  while(1) 
  { 
    printf("請選擇業務:\n"); 
    printf("1.開戶  2.存款  3.取款\n"); 
    printf("4.查詢  5.轉賬  6.掛失\n"); 
    printf("7.解掛  8.銷戶  9.改密\n"); 
    printf("-1.退出\n"); 
    scanf("%s",a); 
    num=atoi(a); 
    if(num==1) 
      openaccount();//開戶 
    else if(num==2) 
      save();//存款 
    else if(num==3) 
      withdraw();//取款 
    else if(num==4) 
      showAccount();//查詢 
    else if(num==5) 
      transferAccounts();//轉賬 
    else if(num==6) 
      reportLoss(); //掛失 
    else if(num==7) 
      cancelLoss(); //解掛 
    else if(num==8) 
      cancelAccount(); //注銷賬戶 
    else if(num==9) 
      updatePassword();  //更改密碼 
    else if(num==-1) 
    { 
      printf("歡迎下次再來\n"); 
      break; 
    } 
 
    else 
      printf("抱歉，沒有此業務\n"); 
  } 
  if((fp=fopen("account.txt","w"))==NULL) 
  { 
    printf("失??！\n"); 
    exit(1); 
  } 
  for(i=0; i<accountnum; i++) 
  { 
    fprintf(fp,"%s\t%s\t%s\t%d\t%d\n",banks[i].account,banks[i].name,banks[i].password,banks[i].balance,banks[i].state); 
  } 
  fclose(fp); 
  return 0; 
} 
void openaccount() 
{ 
 
  int i=0,j=0; 
  int r; 
  char ch; 
  char password1[10]= {0}; 
  printf("賬戶（十位數）：\n"); 
  scanf("%s",banks[accountnum].account); 
  while(banks[accountnum].account[i]!='\0') 
    i++; 
  if(i!=10) 
  { 
    printf("輸入賬號有誤\n"); 
    return; 
  } 
  i=0; 
  printf("姓名：\n"); 
  scanf("%s",banks[accountnum].name); 
  printf("密碼：\n"); 
  while((ch=getch())!='\r') 
  { 
    banks[accountnum].password[i++]=ch; 
    putchar('*'); 
  } 
  printf("\n"); 
  printf("再次輸入密碼：\n"); 
  while((ch=getch())!='\r') 
  { 
    password1[j++]=ch; 
    putchar('*'); 
  } 
  printf("\n"); 
  r=strcmp(banks[accountnum].password,password1); 
  if(r!=0) 
  { 
 
    printf("兩次密碼不相同，開戶失??！\n"); 
    return; 
  } 
  banks[accountnum].balance=0; 
  banks[accountnum].state=0; 
  accountnum++; 
  printf("開戶成功\n"); 
} 
void save() 
{ 
  if(load()!=1) 
    return; 
  char addmoney[10];//存入金額 
  int money;//將字符型轉化為int型 
  int i=0; 
  printf("存入金額:\n"); 
  scanf("%s",addmoney); 
  while(addmoney[i]!='\0') 
  { 
    if(addmoney[i]<'0'||addmoney[i]>'9') 
    { 
      printf("輸入格式錯誤！\n"); 
      return; 
    } 
    i++; 
  } 
  while(addmoney[i]!='\0') 
  { 
    if(i>9) 
    { 
      printf("金額超限\n"); 
      return; 
    } 
    i++; 
  } 
  money=atoi(addmoney); 
  if(money==0) 
  { 
    printf("存款失敗\n"); 
    return; 
  } 
  else 
  { 
    banks[nowaccount].balance+=money; 
    printf("存款成功\n"); 
  } 
} 
void withdraw() 
{ 
  if(load()!=1) 
    return; 
  char reducemoney[10];//取款金額 
  int money,i=0; 
  printf("請輸入取款金額\n"); 
  scanf("%s",reducemoney); 
  while(reducemoney[i]!='\0') 
  { 
    if(reducemoney[i]<'0'||reducemoney[i]>'9') 
    { 
      printf("輸入格式錯誤！\n"); 
      return; 
    } 
    i++; 
  } 
  while(reducemoney[i]!='\0') 
  { 
    if(i>9) 
    { 
      printf("金額超限\n"); 
      return; 
    } 
    i++; 
  } 
  money=atoi(reducemoney); 
  if(money==0) 
  { 
    printf("取款失敗\n"); 
    return; 
  } 
  else 
  { 
    if(money>banks[nowaccount].balance) 
      printf("您的賬戶沒有這么多余額,取款失敗!\n"); 
    else 
    { 
      banks[nowaccount].balance-=money; 
      printf("取款成功\n"); 
    } 
  } 
} 
void showAccount() 
{ 
  if(load()!=1&&load()!=2) 
    return; 
  printf("您的賬戶信息如下：\n"); 
  printf("賬號：%s\t余額：%d\n",banks[nowaccount].account,banks[nowaccount].balance); 
} 
void transferAccounts() 
{ 
  if(load()!=1) 
    return; 
  char account1[20]; 
  int i,judge=0,money,a; 
  char tramoney[10]; 
  printf("請輸入您轉入的賬戶\n"); 
  scanf("%s",account1); 
  for(i=0; i<accountnum; i++) 
  { 
    if(strcmp(account1,banks[i].account)==0) 
    { 
      a=i; 
      judge=1; 
      break; 
    } 
  } 
  if(judge!=1) 
   { 
     printf("沒有發現此賬戶\n"); 
     return; 
   } 
  printf("請輸入轉賬金額\n"); 
  scanf("%s",tramoney); 
  while(tramoney[i]!='\0') 
  { 
    if(tramoney[i]<'0'||tramoney[i]>'9') 
    { 
      printf("輸入格式錯誤！\n"); 
      return; 
    } 
    i++; 
  } 
  while(tramoney[i]!='\0') 
  { 
    if(i>9) 
    { 
      printf("金額超限\n"); 
      return; 
    } 
    i++; 
  } 
  money=atoi(tramoney); 
  if(money==0) 
  { 
    printf("轉賬失敗\n"); 
    return; 
  } 
  else 
  { 
    if(money>banks[nowaccount].balance) 
      printf("您的賬戶沒有這么多余額,轉賬失敗!\n"); 
    else 
    { 
      banks[nowaccount].balance-=money; 
      banks[a].balance+=money; 
      printf("轉賬成功\n"); 
    } 
  } 
 
} 
void reportLoss() 
{ 
  if(load()!=1) 
    return; 
  banks[nowaccount].state=1; 
  printf("掛失成功\n"); 
} 
void cancelLoss() 
{ 
  int judge=0; 
  if(load()==3) 
  { 
    printf("立即解掛請按1，退出請按0\n"); 
    scanf("%d",&judge); 
    if(judge==1) 
    { 
      banks[nowaccount].state=0; 
      printf("解掛成功\n"); 
    } 
 
  } 
  else if(load()==1) 
    printf("賬戶正常\n"); 
} 
void cancelAccount() 
{ 
  int r; 
  r=load(); 
  if(r==2) 
  { 
    printf("賬戶已經銷戶\n"); 
    return; 
  } 
  else if(r==3||r==0) 
    return; 
  else if(r==1) 
  { 
    printf("請將您的賬戶余額取完\n"); 
    banks[nowaccount].state=2; 
    banks[nowaccount].balance=0; 
    printf("注銷成功\n"); 
  } 
} 
void updatePassword() 
{ 
  char newpassword1[10]= {0},newpassword2[10]= {0}; 
  int i=0,j=0,r; 
  char ch; 
  if(load()!=1) 
    return; 
  printf("請輸入新密碼\n"); 
  while((ch=getch())!='\r') 
  { 
    newpassword1[i++]=ch; 
    putchar('*'); 
  } 
  printf("\n"); 
  printf("再次輸入密碼：\n"); 
  while((ch=getch())!='\r') 
  { 
    newpassword2[j++]=ch; 
    putchar('*'); 
  } 
  printf("\n"); 
  r=strcmp(newpassword1,newpassword2); 
  printf("r:%d",r); 
  if(r!=0) 
  { 
 
    printf("兩次密碼不相同，改密失??！\n"); 
    return; 
  } 
  i=0; 
  while(newpassword1[i]!='\0') 
  { 
    banks[nowaccount].password[i]=newpassword1[i]; 
    i++; 
  } 
  printf("改密成功\n"); 
}