c语言是面向过程的,不像java,没有好看的界面,但是代码的执行效率很高.

没有用指针的,由于没有学到文件操作部分,涉及到存储的功能暂时无法实现,但是里面有修改密码的模块了.

独立想出来的,用了近六个小时.大部分花在了调试与界面美化上了.

#include

#include

static float balance=0.00;                        /*静态全局变量*/

static char password[10]="pengyuan";

void printstar(int Num)                           /*用于打印星号的自定义函数*/

{

int i;

for(i=0;i

printf("*");

}

void deposit(void)                                  /*用于存款的函数模块*/

{                                                          /*有些语句纯粹是为了美化下界面*/

float a1;

printf("/nPlease input the amount:/n");

scanf("%f",&a1);

balance+=a1;

printf("/n/nDeposit Successfully!");

printf("                              **BANK OF CHINA**/n");

}

void withdraw(void)                                   /*用于取款的函数模块*/

{

float a2;

printf("/nPlease input the amount:/n");

scanf("%f",&a2);

if(a2<=balance)

{

balance-=a2;

printf("/n/nWithdraw Successfully!");

printf("                               **BANK OF CHINA**/n");

}

else printf("/nERROR!    You Cannot Do It!");

}

void Balance(void)                                  /*用于余额查询的函数模块*/

{

printf("/n/nBalance is %.2f",balance);

printf("                                 **BANK OF CHINA**");

if(balance<100)

{

printf("/nYour Balance Is Low!/n");

printf("Please Deposit More Money!/n");

}

else if(balance>10000)

{

printf("/nYour Balance Is High!/n");

printf("For Safe   Don't Deposit Any Money More!/n");

}

}

void change_password(void)                   /*用于修改密码的函数模块,可惜还没

{                                                             有学到文件操作部分,以后完善*/

int i;

char string1[10];

printf("/nPlease input your new password:/n");

scanf("%s",string1);

for(i=0;string1[i]!='/0';i++)

password[i]=string1[i];

do

{

password[i]='/0';

i++;

}while(i<10);

printf("/nChange Has Been Done Successfully!         **BANK OF CHINA**/n");

}

void function(void)                           /*自定义的函数,若密码正确,则执行该函数*/

{

int i;

printf("/n");

printstar(15);

printf("/nWelcome to use!");

printf("                      **YOUR FINANCIAL ASSISTANT/n");

printstar(15);

printf("                                          BANK OF CHINA**/n");

printf("/n/n");

printstar(38);

printf("/nUsername:                    Peng Yuan/n");

printf("Bank:                    Bank Of China/n");

printf("Address:  South Campus Of CSU,Changsha/n");

printstar(38);

for(i=0;;i++)

{

int m;

printf("/n/nPlease Choose Your Operation:");

printf("                          **BANK OF CHINA**/n");

printstar(35);

printf("/n1.Deposit    2.Withdraw   3.Balance/n");

printf("4.Change Password       0.Safe Exit/n");

printstar(35);

printf("/n");

scanf("%d",&m);

switch(m)

{

case 1:deposit();break;

case 2:withdraw();break;

case 3:Balance();break;

case 4:change_password();break;

case 0:printf("/nThanks For Use!       Welcome Next Time!");

getch();

exit(0);

default :printf("/nYour Operation Was Wrong!/n");

printf("Please Retry It!/n");break;

}

}

}

main()                                                   /*主函数放在最后,尽量模块化*/ {   int i;   char string2[10];   for(i=1;i<=2;i++)                                /*for循环用于控制密码的输入次数*/   {    printf("Please Input Your Password:/n");    gets(string2);    if(strcmp(password,string2)==0)    function();    else printf("/nYour Password Is Wrong!/nPlease Retry It!/n/n");   }   printf("Please Input Your Password For The Last Time Today!:/n");   gets(string2);   if(strcmp(password,string2)==0)   function();   printf("/nStill Wrong!!!/nSorry! You Cannot Enter The Account Today!/n");   printf("/nPress any key to exit.../n");   getch(); }