C语言实现ATM系统程序的完整代码

#include<stdio.h>
#include<string.h>
#include<conio.h>
#include<stdlib.h>
//开户信息
typedef struct _Person
{
	char name[20];
	char account[20];
	char password[7];
	float money;
}Person;
//结点
typedef struct _Node
{
	Person P;	//客户
	struct _Node* next;
}Node;
Node* HeadNode = NULL;//链表头

/*----------------函数--------------------*/
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);

//主菜单
void Menu()
{
	printf("nttt欢迎进入ATM银行管理系统n");
	printf("tt 1. 注册n");
	printf("tt 2. 登录n");
	printf("tt 3. 系统帮助n");
	printf("tt 4. 查询账号n");
	printf("tt 5. 退出n");
}
//注册
void Register()
{
	Node* NewNode = (Node*)malloc(sizeof(Node));
	NewNode->next = NULL;
	NewNode->P.money = 0;

	printf("请输入您的名字:");
	scanf("%s", NewNode->P.name);
	printf("请输入您的密码:");
	scanf("%s", NewNode->P.password);

	char Password[7];
	printf("请再次输入您的密码:");
	scanf("%s", Password);

	for (int i = 1; i < 4; i++)
	{
		if (strcmp(NewNode->P.password, Password) != 0)
		{
			printf("您输入的密码有误，还有%d次机会.n", 3 - i);
			printf("请再次输入您的密码:");
			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);
			//头插法
			if (HeadNode == NULL)
			{
				HeadNode = NewNode;
			}
			else
			{
				NewNode->next = HeadNode;
				HeadNode = NewNode;
			}
			printf("nnnntttt恭喜你已经成功注册账户，以下是您的账户信息.n");
			printf("tttt姓名:%sn", NewNode->P.name);
			printf("tttt账户:%sn", NewNode->P.account);
			printf("tttt余额:%.2fn", NewNode->P.money);
			getch();
			return 1;
		}

	}
	printf("您的账号已被锁定，请稍后再试.");
	return 1;
}
//取款
void DrawMoney(Node* pNode)
{
	Node* mNode = pNode;
	float Money = 0;
	printf("欢迎进入ATM银行管理系统n");
	printf("请选择你取款金额n");
	printf("100tt2000n");
	printf("500tt5000n");
	printf("10000tt其他金额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("请存取您的金额:");
	scanf("%f", &Money);
	mNode->P.money = mNode->P.money + Money;
	return mNode;
}
//转账
void Transfer(Node* pNode)
{
	Node* TNode = HeadNode;
	char Account[20];
	printf("请输入转账的号码:");
	scanf("%s", Account);
	while (TNode != NULL)
	{
		if (strcmp(TNode->P.account, Account) != 0)
		{
			TNode = TNode->next;
			continue;
		}
		else
		{
			float Money = 0;
			printf("请输入您要转账的金额:");
			printf("100tt2000n");
			printf("500tt5000n");
			printf("10000tt其他金额n");
			scanf("%f", &Money);
			TNode->P.money = TNode->P.money + Money;
			pNode->P.money = pNode->P.money - Money;
			return 1;
		}
	}
	return 1;
}
//登录菜单
void LoginMenu(Node * pNode)
{

	while (1)
	{
		printf("欢迎进入ATM银行管理系统n");
		printf("请选择以下服务:n");
		printf("1.取款tt2.查询n");
		printf("3.存款tt4.转账n");
		printf("5.修改密码t6.退出n");

		char ch = getch();
		switch (ch)
		{
		case '1':
			DrawMoney(pNode);
			break;
		case '2':
			printf("您的账户余额为:%.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");
	}
	

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

	char P_account[20];
	char P_password[7];
	printf("请输入您的卡号:");
	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("请输入您的密码:");
				scanf("%s", P_password);
				if (strcmp(P_password, pNode->P.password) != 0)
				{
					printf("您输入的密码有误，还有%d次机会.n", 3 - i);
				}
				else
				{
					system("cls");
					LoginMenu(pNode);
					return 1;
				}
			}
			printf("n对不起，您输入的密码有误，请重新登录.n");
			system("pause");
			return 1;

		}
		
	}
	return 1;
}
//系统帮助信息
void Help()
{
	system("cls");
	printf( "nnnnt——————————-----—---——ATM系统帮助----------------------------------------n"
			"t1、初始界面：客户插卡前或者退卡后ATM显示的界面，提示客户插卡操作及银行广告.n"

			"t2、身份认证：需要客户插入银行卡后输入密码来验证所有权.n"

			"t3、吞卡：客服若连续输入密码3次错误后，则将卡吞入ATM内.n"

			"t4、账户：账户由银行卡的卡号、密码、银行系统用户信息组成.n"

			"t5、业务操作：由查询余额、取款、存款、转账、取卡等事项组成.n"

			"t6、查询余额：显示该账户中剩余金额.n"

			"t7、取款：根据客户输入的金额从账户中扣除相应的金额，客户可以提取相应数额的现金.n"

			"t8、存款：客户存入现金，账户根据现金数额增加剩余金额.n"

			"t9、转账：客户输入另外一个账户号码和金额，从本账户的余额中减去该金额，增加到那个账号中.n"

			"t10、打印凭条：凭条由日期，银行卡的卡号，交易流水号组成.n"

			"t11、取卡：客户取回银行卡.n"
			"t————————————————-------------------------------------------------------n"
	);
	getch();
	return 1;
}
//查询账号
void FindAccount(Node* pNode)
{
	Node* FNode = pNode;
	char AccountName[7];
	printf("请输入账号姓名:");
	scanf("%s", AccountName);

	while (FNode != NULL)
	{
		if (strcmp(AccountName, FNode->P.name) != 0)
		{
			FNode = FNode->next;
			continue;
		}
		else
		{
			printf("该姓名的账户为:%s", FNode->P.account);
			return 1;
		}
	}
	printf("抱歉!该姓名未注册账号.");
	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;
}