C++ 은행 계좌 관리 프로그램

#include <iostream>
#include <cstring>

using namespace std;
const int NAME_LEN = 20;

void ShowMenu(void);
void MakeAccount(void);
void DepositMoney(void);
void WithDrawMoney(void);
void ShowAllAccInfo(void);

enum {MAKE=1,DEPOSIT,WITHDRAW,INQUIRE,EXIT};

typedef struct
{

	int accID;
	int balance;
	char cusName[NAME_LEN];

} Account;

Account accArr[100];
int accNum = 0;

int main(void) {

	int choice;

	while (true) {
		ShowMenu();
		cout << "선택: ";
		cin >> choice;
		cout << endl;

		switch (choice)
		{

		case MAKE:
			MakeAccount();
			break;
		case DEPOSIT:
			DepositMoney();
			break;
		case WITHDRAW:
			WithDrawMoney();
			break;
		case INQUIRE:
			ShowAllAccInfo();
			break;
		case EXIT:
			return 0;
		default:
			cout << "illegal selection" << endl;
		}
		
	}

	return 0;

	
}
void ShowMenu(void) {

	cout << "---Menu---" << endl;
	cout << "1. 계좌개설" << endl;
	cout << "2. 입 금" << endl;
	cout << "3. 출 금" << endl;
	cout << "4. 계좌정보 전체 출력" << endl;
	cout << "5. 프로그램 종료" << endl;
}


void MakeAccount(void)
{
	int id;
	char name[NAME_LEN];
	int balance;

	cout << "[계좌개설]" << endl;
	cout << "계좌 ID"; cin >> id;
	cout << "이름 :"; cin >> name;
	cout << "입금액 :"; cin >> balance;
	cout << endl;

	accArr[accNum].accID = id;
	accArr[accNum].balance = balance;
	strcpy_s(accArr[accNum].cusName, name);
	accNum++;

}

void DepositMoney(void) {
	int money;
	int id;
	cout << "[입금]" << endl;
	cout << "계좌ID: "; cin >> id;
	cout << "입금액: "; cin >> money;

	for (int i = 0; i < accNum; i++) {
		if (accArr[i].accID == id) {
			accArr[i].balance += money;
			cout << "입금완료" << endl << endl;
			return;
		}
	}
	cout << "유효하지않은 ID입니다." << endl << endl;
}

void WithDrawMoney(void) {
	int money;
	int id;
	cout << "[출 금]" << endl;
	cout << "계좌 ID: "; cin >> id;
	cout << "출금액 :"; cin >> money;

	for (int i = 0; i < accNum; i++) {
		if (accArr[i].accID == id) {
			if (accArr[i].balance < money)
			{
				cout << " 잔액 부족 " << endl << endl;
				return;
			}

			accArr[i].balance -= money;
			cout << "출금완료" << endl << endl;
			return;
		}
	}
	cout << "유효하지않은 ID입니다." << endl << endl;
}

void ShowAllAccInfo(void) {

	for (int i = 0; i < accNum; i++) {

		cout << "계좌ID: " << accArr[i].accID << endl;
		cout << "이름:" << accArr[i].cusName << endl;
		cout << "잔액:" << accArr[i].balance << endl;
	}


}

 

 

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