c++ 은행 관리 프로그램

#include <iostream>
using namespace std;
 
struct Account {
char accID[20]; //계좌번호
char secID[20]; //비밀번호
char name[20]; //이름
int balance; //잔액
};
 
int main(void){
Account man = { "123", "0000", "홍길동", 10000 };
cout << "계좌번호 : " << man.accID << endl;
cout << "계좌번호 : " << man.secID << endl;
cout << "계좌번호 : " << man.name << endl;
cout << "계좌번호 : " << man.balance << endl;
 
return 0;
}
개인정보 추가 및 조회 구조체

#include <iostream>
/*********개인정보 구조체**********
using namespace std;
 
typedef struct Person{
int age;
char name[20];
char personID[20];
}Pers;
 
Person Array[20];
int number = 0;
 
void Show()
{
for (int i=0; i < number; i++)
{
cout << "개인정보" << endl;
cout << "1. 이름 : " << Array[i].name << endl;
cout << "2. 나이 : " << Array[i].age << endl;
cout << "3. I D : " << Array[i].personID << endl<<endl;
}
}
 
void menu()
{
cout << "***개인정보***" << endl;
cout << "1.개인정보추가" << endl;
cout << "2.개인정보조회" << endl<<endl;
}
 
void add()
{
int age;
char name[20];
char personID[20];
cout << "개인 정보 추가" << endl;
cout << "1. 이름 : "; cin>>name;
cout << "2. 나이 : "; cin >> age;
cout << "3. I D : "; cin >> personID;
cout << " 개인정보 추가완료" << endl<<endl;
 
strcpy_s(Array[number].name, name);
Array[number].age, age;
strcpy_s(Array[number].personID, personID);
 
number++;
}
 
int main()
{
int select;
while (1)
{
 
menu();
cout << "메뉴 번호 입력 :"; cin >> select;
switch (select)
{
case 1:
add();
break;
 
case 2:
Show();
break;
}
}
return 0;
}
*/
 
 
/******구조체를 이용한 call-by value*******
using namespace std;
 
typedef struct Person{
int age;
char name[20];
char personID[20];
}Person;
 
void show(Person p)
{
cout << "개인정보조회" << endl;
cout << "이 름 :"<< p.name <<endl;
cout << "나 이 :"<< p.age<< endl;
cout << "I D :" << p.personID <<endl;
}
 
int main()
{
Person man;
cout << "이 름 :"; cin >> man.name;
cout << "나 이 :"; cin >> man.age;
cout << "I D :"; cin >> man.personID;
 
show(man);
return 0;
 
}
*/
 
 
/*********동적 메모리 할당과NULL포인터 리턴********
//#define DEBUG 1
#define DEBUG 0
using namespace std;
 
int main()
{
int size;
cout << "메모리 할당하고자 하는 배열의 크기"; cin >> size;
 
int* array = new int[size];
#if DEBUG==1
if (array==NULL) //#define DEBUG가 1이 아닌경우 컴파일 제외된다.
{
cout << "메모리 할당 실패" << endl;
return -1;
}
#endif
for (int i = 0; i < size; i++)
 
array[i] = i + 0;
 
for (int j = 0; j < size; j++)
 
cout << "arr[" << j << "]" << array[j] << endl;
 
delete[]array;
return 0;
}
*/
  구조체 안에 함수 넣기

#include <iostream>
using namespace std;
 
struct Account{
char accID[20];
char secID[20];
char name[20];
int balance;
 
void Deposit(int money){
balance = balance + money;
}
void Withdraw(int money){
balance = balance - money;
}
};
 
int main(){
Account man = { "123", "1234", "È«±æµ¿", 1000 };
 
man.Deposit(100);
cout << "ÀÜ¾× :" << man.balance << endl;
 
man.Withdraw(1000);
cout << "ÀÜ¾× :" << man.balance << endl;
 
}
#include <iostream>
using namespace std;
 
typedef struct Person{
int age;
char name[20];
char personID[20];
}Pers;
 
Person Array[20];
int number = 0;
 
void Show()
{
for (int i=0; i < number; i++)
{
cout << "개인정보" << endl;
cout << "1. 이름 : " << Array[i].name << endl;
cout << "2. 나이 : " << Array[i].age << endl;
cout << "3. I D : " << Array[i].personID << endl;
}
}
 
void menu()
{
cout << "1.개인정보추가" << endl;
cout << "2.개인정보조회" << endl;
}
 
void add()
{
int age;
char name[20];
char personID[20];
cout << "개인 정보 추가" << endl;
cout << "1. 이름 : "; cin>>name;
cout << "2. 나이 : "; cin >> age;
cout << "3. I D : "; cin >> personID;
cout << " 개인정보 추가완료" << endl;
 
strcpy_s(Array[number].name, name);
Array[number].age, age;
strcpy_s(Array[number].personID, personID);
 
number++;
}
 
int main()
{
int select;
while (1)
{
menu();
cout << "메뉴 번호 입력 :"; cin >> select;
switch (select)
{
case 1:
add();
break;
 
case 2:
Show();
break;
}
}
return 0;
}