此支票账户 C 程序的 deposit() 函数

Question

我正在用 C 语言编写一个程序来模拟支票账户。有交易代码，I = 初始余额，D = 存款，C = 支票（你给某人写一张支票，就像取款一样）。维护帐户的月费为 3.00 美元，兑现每张支票的费用为 0.06 美元，每笔存款 %0.03，当兑现支票余额低于 0.00 美元时，透支费用为 5.00 美元。

我无法完成这些功能。如果您不认为对所有这些都提供一点帮助是可以的，那么请帮助使用 deposit() 函数。我才刚接触 C 语言几个月，而我们刚刚接触到函数。这是我未完成的代码。感谢您的帮助。

#include <stdio.h>

void outputHeaders (void);
void initialBalance (double iBalance);
void deposit(double amount, double balance, double service, int numDeposit,double amtDeposit);
void check(char code, double amtCheck, double balance);
void outputSummary ();


int main (void)
{

char code;
double amount, service, balance;
double amtCheck, amtDeposit, openBalance, closeBalance;
int numCheck, numDeposit;

amount       = 0.0;
service      = 0.0;
balance      = 0.0;
amtCheck     = 0.0;
amtDeposit   = 0.0;
openBalance  = 0.0;
closeBalance = 0.0;
numCheck     = 0;
numDeposit   = 0;

outputHeaders();

printf("Enter the code of transaction and the amount: ");
scanf("%c %lf\n", &code, &amount);

if (code == 'I')
{
    initialBalance(amount, &balance, &service, &numDeposit, &amtDeposit);
}

else if (code == 'D')
{
    deposit (amount, &balance, &service, &numDeposit);  
}
else
{
    check(amount, &balance, &service, &numCheck, &amtCheck);
}


getchar(); getchar();
return 0;
}

void outputHeaders (void)
{

printf("Transaction         Deposit       Check      Balance\n"
       "--------------      --------      ------     -------");
}

void initialBalance (double amount, double *balance, double *service, int *numDeposit, double *amtDeposit)
{



}

void deposit (double amount, double *balance, double *service, int *numDeposit, double *amtDeposit)
{

*balance = *balance + *amtDeposit;  
*numDeposit++;                      //need to keep track of amount of deposits
*service = *service - 0.03;         //service charge

printf("Deposit %lf %lf\n", *amtDeposit, *balance);

}

void check (double amount, double *balance, double *service, int *numCheck, double *amtCheck)
{



}

void outputSummary (int *numDeposit, double *amtDeposit, int *numCheck, int *amtCheck, double *openBalance, double *service, double *closeBalance)
{



}

Answer 1

当您声明/定义时，我只看到deposit(); 函数在您的函数中，您使用了五个参数，但调用时间只使用了四个参数。

所以如果你打电话给deposit (amount, &balance, &service, &numDeposit);

然后像这样更改您的定义/声明

void deposit (double amount, double *balance, double *service, int *numDeposit)
{

*balance = *balance + amount;  
*numDeposit++;                      //need to keep track of amount of deposits
*service = *service - 0.03;         //service charge
//I think service change need to reduce from main balance so
*balance = *balance - 0.03;
printf("Deposit %lf  balance %lf\n", amount, *balance);

}