C语言银行系统课程设计

2023-09-17 17:14:05 56

本文为大家分享了C语言银行系统课程设计，供大家参考，具体内容如下

main.c

#include
#include
#include
#include
#include
#defineMaxNum200
#defineN_P6
typedefstruct
{
intAccountNumber[3];
charname[20];
charpassword[N_P+1];
unsignedlongamount;
intstate;
}Account;
voidLoad(FILE*,Account*);
voidShowMenu(int);
intMakeChoice(int);
voidEnterPassword(char*);
voidCreatAccount(unsignedchar*,Account*,int);//第一个参数为加密关键字，第二个参数为账户序号
intJudgePassword(char*,char*);
intdecrypt(int*,unsignedchar*);
voidLogIn(unsignedchar*,Account*,int);//第二个参数为当前账户数目,登陆成功返回1，失败返回0
intEnterAccountNumber(unsignedchar*,int);
voidEnterNum(char*,int);
voidOperate(unsignedchar*,Account*,int,int);
voidShowSubMenu(char*);
voidAdministratorMode(unsignedchar*,unsignedchar*,Account*,char*,int);
voidShowAdministratorMenu();
voidWriteToFile(FILE*,unsignedchar*,Account*,char*,int);
intmain()
{
FILE*fp;
inti,total;
unsignedcharkey[4],key_en[4];
charadministrator_password[10];
Account*user;
user=(Account*)malloc(sizeof(Account)*MaxNum);
fp=fopen("bank.txt","r+");
if(fp==NULL)
{
printf("银行数据库无法打开，按任意键结束程序！\n");
getch();
exit(1);
}
fscanf(fp,"%d\n%s\n%s",&total,administrator_password,key);
for(i=0;i<3;++i)//用key_en保存key的值
key_en[i]=key[i];
key_en[0]=(key_en[0]<<3)|(key_en[0]>>(sizeof(key_en[0])*8-3));
key_en[2]=(key_en[2]>>3)|(key_en[2]<<(sizeof(key_en[2])*8-3));
Load(fp,user);//将数据存入数组user中
while(1)
{
system("cls");
ShowMenu(total);
switch(MakeChoice(4))
{
case1:
system("cls");
LogIn(key_en,user,total);
break;
case2:
system("cls");
CreatAccount(key_en,user,total++);
break;
case3:
system("cls");
AdministratorMode(key,key_en,user,administrator_password,total);
break;
default:
system("cls");
WriteToFile(fp,key,user,administrator_password,total);
return0;
}
}
return0;
}

function.c

#include
#include
#include
#include
#include
#defineMaxNum200
#defineN_P6
//账户状态0为正常1为挂失2为冻结3为销户
typedefstruct
{
intAccountNumber[3];
charname[20];
charpassword[N_P];
unsignedlongamount;
intstate;
}Account;
voidLoad(FILE*,Account*);
voidShowMenu(int);
intMakeChoice(int);
voidEnterPassword(char*);
voidCreatAccount(unsignedchar*,Account*,int);//第一个参数为加密关键字，第二个参数为账户序号
intJudgePassword(char*,char*);
intdecrypt(int*,unsignedchar*);
voidLogIn(unsignedchar*,Account*,int);//第二个参数为当前账户数目,登陆成功返回1，失败返回0
intEnterAccountNumber(unsignedchar*,int);
voidEnterNum(char*,int);
voidOperate(unsignedchar*,Account*,int,int);
voidShowSubMenu(char*);
voidAdministratorMode(unsignedchar*,unsignedchar*,Account*,char*,int);
voidShowAdministratorMenu();
voidWriteToFile(FILE*,unsignedchar*,Account*,char*,int);
voidLoad(FILE*fp,Account*user)
{
intcount=0;
//将文件中的用户信息存到数组中
while(fscanf(fp,"\n%d%d%d%s%s%lu%d\n",&user[count].AccountNumber[0],&user[count].AccountNumber[1],\
&user[count].AccountNumber[2],user[count].name,\
user[count].password,&user[count].amount,&user[count].state)!=EOF)
++count;
}
voidShowMenu(inttotal)
{
printf("****中国银行烟大计163-1分行****\n");
printf("目前共有%d名注册用户*****\n",total);
printf("1.登陆*************************\n");
printf("2.开户*************************\n");
printf("3.进入管理员模式***************\n");
printf("4.退出*************************\n");
}
intMakeChoice(intn)
{
intjudge;
printf("请输入1~%d\n",n);
scanf("%d",&judge);
while(judge<1||judge>n)//确保输入的是1~n
{
printf("输入不合法，请输入1~%d\n",n);
fflush(stdin);//如果不加这句，输入一些字母会导致函数无限循环
scanf("%d",&judge);
}
returnjudge;
}
voidEnterPassword(char*password)
{
inti;
chart;
for(i=0;i'9')
t=getch();
password[i]=t;
putchar('*');
}
}
voidEnterNum(char*s,intn)
{
inti=0;
chart;
while(i'9')
t=getch();
s[i]=t;
putchar(t);
++i;
}
}
intJudgePassword(char*temp_password,char*password)
{
inti;
for(i=0;i=MaxNum)
{
printf("银行用户数量已达到上限！\n按任意键返回主界面");
getch();
return;
}
inti,flag,num_de[3];
intnum_en[3];
chartemp_password[N_P],password[N_P];
//将num的个位十位和百位分解，num_de[2]存个位，以此类推
for(i=0;i<3;++i)
num_de[i]=0;
for(i=0;i<3;++i)
num_en[i]=0;
if(num<10)
num_de[2]=num;
elseif(num<100)
{
num_de[2]=num%10;
num_de[1]=num/10;
}
else
{
for(i=0;i<3;++i)
{
num_de[i]=num%10;
num/=10;
}
}
//分解完成
while(1)
{
flag=0;
printf("请输入用户姓名：");
fflush(stdin);
scanf("%19[^\n]",user[num].name);
for(i=0;itotal)//若num大于total则账号输入错误
printf("\n账号输入错误！\n");
else
break;
}
returnnum;
}
voidLogIn(unsignedchar*key,Account*user,inttotal)
{
intnum,i;
charpassword[N_P];
num=EnterAccountNumber(key,total);
//判断账户状态
if(user[num].state==3)
{
printf("该账户已销户，无法使用！\n");
printf("按任意键返回操作界面");
getch();
return;
}
elseif(user[num].state==2)
{
printf("该账户因输入密码错误次数达三次，已冻结！\n请进入管理员模式解除异常状态！\n");
printf("按任意键返回操作界面");
getch();
return;
}
//判断结束
i=0;
while(1)//输入密码
{
printf("\n请输入密码：");
EnterPassword(password);
if(JudgePassword(password,user[num].password)&&(++i<3))
printf("\n密码输入错误，您还有%d次机会\n",3-i);
elseif(i>=3)
{
user[num].state=2;
printf("\n密码错误次数过多，账户已冻结!\n");
printf("即将返回主界面");
for(i=0;i<3;++i)
{
printf("%d",i);
Sleep(1000);
printf("\b");
}
return;
}
else
{
printf("登陆成功！\n");
break;
}
}
Operate(key,user,num,total);
}
voidShowSubMenu(char*name)
{
printf("****欢迎%s登陆本行********\n",name);
printf("1.存款*************************\n");
printf("2.取款*************************\n");
printf("3.查询*************************\n");
printf("4.转账*************************\n");
printf("5.挂失*************************\n");
printf("6.销户*************************\n");
printf("7.改密*************************\n");
printf("8.返回主菜单*******************\n");
}
voidOperate(unsignedchar*key,Account*user,intnum,inttotal)
{
inti,num_t;
unsignedlongamount_t,max=1;
charpassword[N_P],temp_password[N_P],amount_judge[6];
for(i=0;i<(sizeof(unsignedlong)*8-1);++i)//计算最大存款额max
max*=2;
while(1)
{
system("cls");
ShowSubMenu(user[num].name);
switch(MakeChoice(8))
{
case1:
system("cls");
while(1)
{
printf("请输入存款金额：");
for(i=0;i<6;++i)
amount_judge[i]='\0';
EnterNum(amount_judge,5);
amount_t=atol(amount_judge);
if(amount_t>99999)
printf("\n单次存款金额为0~99999元，存款失败！\n");
elseif(amount_t>=max-user[num].amount)
printf("总金额超出上限，存款失败！\n");
else
{
user[num].amount+=amount_t;
printf("\n存款成功！按任意键返回操作界面");
getch();
system("cls");
break;
}
}
break;
case2:
system("cls");
if(user[num].state==1)
{
printf("该账户已挂失，无法执行取款操作！\n");
printf("按任意键返回操作界面");
getch();
break;
}
while(1)
{
printf("请输入取款金额：");
for(i=0;i<6;++i)
amount_judge[i]='\0';
EnterNum(amount_judge,5);
amount_t=atol(amount_judge);
if(amount_t>99999)
printf("\n单次存款金额为0~99999元，存款失败！\n");
elseif(amount_t>user[num].amount)
printf("\n账户余额不足，取款失败!\n");
else
{
user[num].amount-=amount_t;
printf("\n取款成功！按任意键返回操作界面");
getch();
system("cls");
break;
}
}
break;
case3:
system("cls");
printf("用户姓名：%s",user[num].name);
printf("账户余额：%lu\n",user[num].amount);
printf("账户状态：");
if(user[num].state==1)
printf("已挂失\n");
else
printf("正常\n");
printf("按任意键返回操作界面");
getch();
system("cls");
break;
case4:
system("cls");
if(user[num].state==1)
{
printf("该账户已挂失，无法执行转账操作！\n");
printf("按任意键返回操作界面");
getch();
break;
}
num_t=EnterAccountNumber(key,total);
while(1)
{
printf("请输入转账金额：");
for(i=0;i<6;++i)
amount_judge[i]='\0';
EnterNum(amount_judge,5);
amount_t=atol(amount_judge);
if(amount_t>99999)
printf("\n单次存款金额为0~99999元，存款失败！\n");
elseif(amount_t>user[num].amount)
printf("账户金额不足，转账失败!\n");
elseif(amount_t>=max-user[num_t].amount)
printf("\n对方总金额超出上限，转账失败！\n");
else
{
user[num].amount-=amount_t;
user[num_t].amount+=amount_t;
printf("\n转账成功！按任意键返回操作界面");
getch();
system("cls");
break;
}
}
break;
case5:
system("cls");
printf("您确定要挂失吗？\n");
printf("1.确定2.取消\n");
if(MakeChoice(2)==1)
{
user[num].state=1;
printf("挂失成功！\n按任意键返回主界面");
getch();
}
system("cls");
break;
case6:
system("cls");
printf("您确定要销户吗？销户后所有功能都将无法实现，账户内的存款将冻结！\n");
printf("1.确定2.取消\n");
if(MakeChoice(2)==1)
{
user[num].state=3;
printf("销户成功！\n按任意键返回主界面");
getch();
system("cls");
return;
}
else
break;
case7:
system("cls");
while(1)
{
printf("\n请输入原密码：");
EnterPassword(password);
if(JudgePassword(password,user[num].password))
printf("\n原密码输入错误！\n");
else
break;
}
while(1)
{
printf("\n请输入新密码：");
EnterPassword(password);
printf("\n请再次确认密码：");
EnterPassword(temp_password);
if(JudgePassword(temp_password,password))
printf("\n两次输入不相等，密码设置失败！");
else
{
strcpy(user[num].password,password);
break;
}
}
printf("\n密码修改成功！\n按任意键返回操作界面");
getch();
system("cls");
break;
default:
return;
}
}
}
voidAdministratorMode(unsignedchar*key_orig,unsignedchar*key,Account*user,char*administrator_password,inttotal)
{
intnum;
charpassword[N_P],temp_password[N_P];
while(1)//输入密码
{
printf("请输入管理员密码密码：");
EnterPassword(password);
if(JudgePassword(password,administrator_password))
printf("密码输入错误！\n");
else
break;
}
printf("\n登陆成功！按任意键继续");
getch();
while(1)
{
system("cls");
ShowAdministratorMenu();
switch(MakeChoice(6))
{
case1:
system("cls");
num=EnterAccountNumber(key,total);
printf("请设置密码：");
EnterPassword(password);
printf("您设置的密码是：");
puts(user[num].password);
printf("\n按任意键返回操作界面");
getch();
break;
case2:
system("cls");
num=EnterAccountNumber(key,total);
printf("您确定要解除此用户的挂失状态吗？\n");
printf("1.确定2.取消\n");
if(MakeChoice(2)==1)
{
user[num].state=0;
printf("解除挂失成功！\n按任意键返回主界面");
getch();
}
break;
case3:
system("cls");
num=EnterAccountNumber(key,total);
printf("\n您确定要解除此用户的冻结状态吗？\n");
printf("1.确定2.取消\n");
if(MakeChoice(2)==1)
{
user[num].state=0;
printf("解除冻结成功！\n按任意键返回主界面");
getch();
}
break;
case4:
system("cls");
while(1)
{
printf("请输入新密码：");
EnterPassword(password);
printf("\n请再次确认密码：");
EnterPassword(temp_password);
if(JudgePassword(temp_password,password))
printf("\n两次输入不相等，密码设置失败！\n");
else
{
strcpy(administrator_password,password);
break;
}
}
printf("\n管理员密码修改成功！\n按任意键返回操作界面");
getch();
break;
case5:
system("cls");
printf("当前的账号生成关键字为“%s”，更改之后所有之前创建的账户将无法打开！\n",key_orig);
printf("您确定要更改账号生成关键字吗？\n");
printf("1.确定2.取消\n");
if(MakeChoice(2)==1)
{
printf("请输入新的关键字：");
scanf("%3s",key_orig);
printf("当前的关键字已更改为“%s”\n按任意键返回操作界面",key_orig);
getch();
}
break;
default:
return;
}
}
}
voidShowAdministratorMenu()
{
printf("****中国银行烟大计163-1分行****\n");
printf("**********管理员模式***********\n");
printf("1.修改用户密码*****************\n");
printf("2.解除挂失*********************\n");
printf("3.解除冻结*********************\n");
printf("4.修改管理员密码***************\n");
printf("5.修改账号生成关键字***********\n");
printf("6.返回主界面*******************\n");
}
voidWriteToFile(FILE*fp,unsignedchar*key,Account*user,char*administrator_password,inttotal)
{
inti,j;
rewind(fp);
fprintf(fp,"%d\n%6s\n%3s\n",total,administrator_password,key);
for(i=0;i
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C语言银行系统课程设计

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