C語言實現ATM系統程序的完整代碼

#include<stdio.h>
#include<string.h>
#include<conio.h>
#include<stdlib.h>
//開戶信息
typedef struct _Person
{
	char name[20];
	char account[20];
	char password[7];
	float money;
}Person;
//結點
typedef struct _Node
{
	Person P;	//客戶
	struct _Node* next;
}Node;
Node* HeadNode = NULL;//鏈表頭

/*----------------函數--------------------*/
void Login();
void Menu();
void Register();
void LoginMenu(Node* pNode);
void FindAccount(Node* pNode);
void DrawMoney(Node* pNode);
void Deposit(Node* pNode);
void Transfer(Node* pNode);
void LoginMenu(Node* pNode);

//主菜單
void Menu()
{
	printf("\n\t\t\t歡迎進入ATM銀行管理系統\n");
	printf("\t\t 1. 註冊\n");
	printf("\t\t 2. 登錄\n");
	printf("\t\t 3. 系統幫助\n");
	printf("\t\t 4. 查詢賬號\n");
	printf("\t\t 5. 退出\n");
}
//註冊
void Register()
{
	Node* NewNode = (Node*)malloc(sizeof(Node));
	NewNode->next = NULL;
	NewNode->P.money = 0;

	printf("請輸入您的名字:");
	scanf("%s", NewNode->P.name);
	printf("請輸入您的密碼:");
	scanf("%s", NewNode->P.password);

	char Password[7];
	printf("請再次輸入您的密碼:");
	scanf("%s", Password);

	for (int i = 1; i < 4; i++)
	{
		if (strcmp(NewNode->P.password, Password) != 0)
		{
			printf("您輸入的密碼有誤，還有%d次機會.\n", 3 - i);
			printf("請再次輸入您的密碼:");
			scanf("%s", Password);
		}
		else
		{
			srand((unsigned int)time(NULL));
			sprintf(NewNode->P.account, "%d%d%d%d%d", rand() % 9000 + 1000, rand() % 9000 + 1000,
				rand() % 9000 + 1000, rand() % 9000 + 1000, rand() % 900 + 100);
			//頭插法
			if (HeadNode == NULL)
			{
				HeadNode = NewNode;
			}
			else
			{
				NewNode->next = HeadNode;
				HeadNode = NewNode;
			}
			printf("\n\n\n\n\t\t\t\t恭喜你已經成功註冊賬戶，以下是您的賬戶信息.\n");
			printf("\t\t\t\t姓名:%s\n", NewNode->P.name);
			printf("\t\t\t\t賬戶:%s\n", NewNode->P.account);
			printf("\t\t\t\t餘額:%.2f\n", NewNode->P.money);
			getch();
			return 1;
		}

	}
	printf("您的賬號已被鎖定，請稍後再試.");
	return 1;
}
//取款
void DrawMoney(Node* pNode)
{
	Node* mNode = pNode;
	float Money = 0;
	printf("歡迎進入ATM銀行管理系統\n");
	printf("請選擇你取款金額\n");
	printf("100\t\t2000\n");
	printf("500\t\t5000\n");
	printf("10000\t\t其他金額\n");
	scanf("%f", &Money);
	mNode->P.money = mNode->P.money - Money;
	return mNode;	
}
//存款
void Deposit(Node* pNode)
{
	Node* mNode = pNode;
	float Money = 0;
	printf("請存取您的金額:");
	scanf("%f", &Money);
	mNode->P.money = mNode->P.money + Money;
	return mNode;
}
//轉賬
void Transfer(Node* pNode)
{
	Node* TNode = HeadNode;
	char Account[20];
	printf("請輸入轉賬的號碼:");
	scanf("%s", Account);
	while (TNode != NULL)
	{
		if (strcmp(TNode->P.account, Account) != 0)
		{
			TNode = TNode->next;
			continue;
		}
		else
		{
			float Money = 0;
			printf("請輸入您要轉賬的金額:");
			printf("100\t\t2000\n");
			printf("500\t\t5000\n");
			printf("10000\t\t其他金額\n");
			scanf("%f", &Money);
			TNode->P.money = TNode->P.money + Money;
			pNode->P.money = pNode->P.money - Money;
			return 1;
		}
	}
	return 1;
}
//登錄菜單
void LoginMenu(Node * pNode)
{

	while (1)
	{
		printf("歡迎進入ATM銀行管理系統\n");
		printf("請選擇以下服務:\n");
		printf("1.取款\t\t2.查詢\n");
		printf("3.存款\t\t4.轉賬\n");
		printf("5.修改密碼\t6.退出\n");

		char ch = getch();
		switch (ch)
		{
		case '1':
			DrawMoney(pNode);
			break;
		case '2':
			printf("您的賬戶餘額為:%.2f", pNode->P.money);
			getch();
			break;
		case '3':
			Deposit(pNode);
			break;
		case '4':
			Transfer(pNode);
			break;
		case '5':
			break;
		case '6':
			return 0;
			break;
		default:
			break;
		}
		system("cls");
	}
	

}
//登錄
void Login()
{
	system("cls");
	Node* pNode = HeadNode;

	char P_account[20];
	char P_password[7];
	printf("請輸入您的卡號:");
	scanf("%s", P_account);

	while (pNode != NULL)
	{
		if (strcmp(P_account,pNode->P.account) != 0)
		{
			pNode = pNode->next;
			continue;
		}
		else
		{
			for (int i = 1; i < 4; i++)
			{
				printf("請輸入您的密碼:");
				scanf("%s", P_password);
				if (strcmp(P_password, pNode->P.password) != 0)
				{
					printf("您輸入的密碼有誤，還有%d次機會.\n", 3 - i);
				}
				else
				{
					system("cls");
					LoginMenu(pNode);
					return 1;
				}
			}
			printf("\n對不起，您輸入的密碼有誤，請重新登錄.\n");
			system("pause");
			return 1;

		}
		
	}
	return 1;
}
//系統幫助信息
void Help()
{
	system("cls");
	printf( "\n\n\n\n\t——————————-----—---——ATM系統幫助----------------------------------------\n"
			"\t1、初始界面：客戶插卡前或者退卡後ATM顯示的界面，提示客戶插卡操作及銀行廣告.\n"

			"\t2、身份認證：需要客戶插入銀行卡後輸入密碼來驗證所有權.\n"

			"\t3、吞卡：客服若連續輸入密碼3次錯誤後，則將卡吞入ATM內.\n"

			"\t4、賬戶：賬戶由銀行卡的卡號、密碼、銀行系統用戶信息組成.\n"

			"\t5、業務操作：由查詢餘額、取款、存款、轉賬、取卡等事項組成.\n"

			"\t6、查詢餘額：顯示該賬戶中剩餘金額.\n"

			"\t7、取款：根據客戶輸入的金額從賬戶中扣除相應的金額，客戶可以提取相應數額的現金.\n"

			"\t8、存款：客戶存入現金，賬戶根據現金數額增加剩餘金額.\n"

			"\t9、轉賬：客戶輸入另外一個賬戶號碼和金額，從本賬戶的餘額中減去該金額，增加到那個賬號中.\n"

			"\t10、打印憑條：憑條由日期，銀行卡的卡號，交易流水號組成.\n"

			"\t11、取卡：客戶取回銀行卡.\n"
			"\t————————————————-------------------------------------------------------\n"
	);
	getch();
	return 1;
}
//查詢賬號
void FindAccount(Node* pNode)
{
	Node* FNode = pNode;
	char AccountName[7];
	printf("請輸入賬號姓名:");
	scanf("%s", AccountName);

	while (FNode != NULL)
	{
		if (strcmp(AccountName, FNode->P.name) != 0)
		{
			FNode = FNode->next;
			continue;
		}
		else
		{
			printf("該姓名的賬戶為:%s", FNode->P.account);
			return 1;
		}
	}
	printf("抱歉!該姓名未註冊賬號.");
	return 1;
}
int main()
{
	system("color b0");
		
	while (1)
	{
		system("cls");
		Menu();
		char ch = _getch();
		switch (ch)
		{
		case '1':
			Register();
			break;
		case '2':
			Login();
			break;
		case '3':
			Help();
			break;
		case '4':
			FindAccount(HeadNode);
			getch();
			break;
		case '5':
			exit(0);
		default:
			break;
		}
	}
	return 0;
}