c语言银行程序

#include<math.h>

#include<stdio.h>

main(){

int a,c,d,e

float b=10000

int f

int num=1

printf("\t\t\t CHNIA BANK ATM\nplease input your secret code:\n")

scanf("%d",&a)

if(a==num){

printf(" welcome you to use your count,you have %.2f RMB!\n",b)

printf(" how much money do you want? please input the numbers: ")

scanf("%d",&e)

printf("\n")

c=b-e

printf(" you till have : %d ,please choose exit or choose function ! \n",c)

scanf("%c",&d)

printf("\n")

}

else if(a!=num){

printf("your secret code is wrong,please input the correct secret code!\n")

}

printf("\t\t \tHELLO,WELCOME TO USE ATM\nplease choose you want function\n")

printf("\n\n")

printf("\t\t-----------------------------------\n")

printf("\t\t|\t\t|\t\t |\n")

printf("\t\t| 1. check\t| 2. withdraw money\t |\n")

printf("\t\t|\t\t|\t\t |\n")

printf("\t\t-----------------------------------\n")

printf("\t\t|\t\t|\t\t |\n")

printf("\t\t| 3. transfer account\t| 4. midify secret code|\n")

printf("\t\t|\t\t|\t\t |\n")

printf("\t\t-----------------------------------\n")

printf("\t\t|\t\t\t\t |\n")

printf("\t\t|\t 0. exit \t\t |\n")

printf("\t\t|\t\t\t\t |\n")

printf("\t\t-----------------------------------\n")

printf("please choose function:\n ")

scanf("%d",&f)

switch(f)

{ case 0:printf("exit")break

case 1:printf("check")break

case 2:printf("withdraw money")break

case 3:printf("transfer account")break

case 4:printf("midify secret code")break

default :printf("it's wrong,please choose in 0~4!")

}

getch()

}

#include<stdio.h>

#include<malloc.h>

#define N 10

int main(void)

{

int i,j,x,m,flag=1

char ch

m=N

char (*p)[10]=(char (*)[10])calloc(N,10*sizeof(char))

for(i=0i<10i++)

for(j=0j<10j++)

p[i][j]='\0'

printf("输入ID时不超过10位,第一位不能为'*'\n")

i=0

while(1)

{

while(i<m)

{

printf("请输入第%d名的ID:",i+1)

ch=getchar()

for(j=0j<10j++)

{

if(j==0&&ch=='*')

{

flag=0

break

}

if(ch=='\n')

break

p[i][j]=ch

ch=getchar()

}

if(flag==0)

break

i=i+1

}

if(flag==0)

break

m=m+N

p=(char (*)[10])realloc(p,m*10*sizeof(char))

for(x=ix<mx++)

for(j=0j<10j++)

p[x][j]='\0'

}

for(j=0j<ij++)

{

printf("第%d名:",j+1)

printf("%s\n",p[j])

}

free(p)

return 0

}

代码如下:

#include <stdlib.h>

#include <stdio.h>

int main()

{

    float balance    // 余额

    float withdraw   // 取款

    float save       // 存款

    char choice      // 用户选择键

    printf("请输入存款余额(包含两位小数):\n")

    scanf("%f",&balance)

    do{

        printf("请选择:D(存款)W(取款)F(结束).\n")

        fflush(stdin)

        choice = getchar()

        switch(choice)

        {

        case 'D':

        case 'd':

            scanf("%f",&withdraw)

            balance += withdraw

            break

        case 'W':

        case 'w':

            scanf("%f",&save)

            balance -= save

            if(balance <= 0.0)balance = 0.0

            break

        case 'F':

        case 'f':

            printf("当前余额为:%.2f\n", balance)

            system("pause")

            return 0

        default:

            break

        }

    }while(true)

}

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