用c语言写银行储蓄代码1、开户业务 2、续存业务3、续取业务4、销户业务5、挂失业务6、批量业务7、咨询估算业务8、个人消费贷款业务9、系统管理0、返回

以下是一个简单的银行储蓄代码示例，主要实现了开户、存款、取款、查询余额、销户和修改密码等基本功能。代码中使用了结构体存储客户信息和账户信息。

#include <stdio.h>
#include <string.h>

// 客户信息结构体
typedef struct {
    char name[20];      // 姓名
    char id[18];        // 身份证号
    char phone[12];     // 手机号码
    char password[7];   // 密码
} customer;

// 账户信息结构体
typedef struct {
    int id;             // 账户号码
    double balance;     // 账户余额
    int status;         // 账户状态（0：正常，1：挂失，2：销户）
    customer owner;     // 账户所有者信息
} account;

// 全局变量，存储所有账户信息
account accounts[100];
int num_accounts = 0;   // 当前账户数

// 开户
void createAccount() {
    if (num_accounts >= 100) {
        printf("无法再创建新账户，已达到最大数量。\n");
        return;
    }
    printf("请输入姓名：");
    scanf("%s", accounts[num_accounts].owner.name);
    printf("请输入身份证号：");
    scanf("%s", accounts[num_accounts].owner.id);
    printf("请输入手机号码：");
    scanf("%s", accounts[num_accounts].owner.phone);
    printf("请设置密码（6位数字）：");
    scanf("%s", accounts[num_accounts].owner.password);
    accounts[num_accounts].id = 100000 + num_accounts;   // 账户号码从 100001 开始
    accounts[num_accounts].balance = 0;
    accounts[num_accounts].status = 0;
    num_accounts++;
    printf("开户成功，您的账户号码是：%d\n", accounts[num_accounts - 1].id);
}

// 存款
void deposit() {
    int account_id, amount;
    char password[7];
    printf("请输入账户号码：");
    scanf("%d", &account_id);
    printf("请输入存款金额：");
    scanf("%d", &amount);
    printf("请输入密码：");
    scanf("%s", password);
    for (int i = 0; i < num_accounts; i++) {
        if (accounts[i].id == account_id) {
            if (strcmp(accounts[i].owner.password, password) != 0) {
                printf("密码错误，存款失败。\n");
                break;
            }
            accounts[i].balance += amount;
            printf("存款成功，当前余额为：%g\n", accounts[i].balance);
            break;
        }
        if (i == num_accounts - 1) {
            printf("账户不存在，存款失败。\n");
        }
    }
}

// 取款
void withdraw() {
    int account_id, amount;
    char password[7];
    printf("请输入账户号码：");
    scanf("%d", &account_id);
    printf("请输入取款金额：");
    scanf("%d", &amount);
    printf("请输入密码：");
    scanf("%s", password);
    for (int i = 0; i < num_accounts; i++) {
        if (accounts[i].id == account_id) {
            if (strcmp(accounts[i].owner.password, password) != 0) {
                printf("密码错误，取款失败。\n");
                break;
            }
            if (accounts[i].balance < amount) {
                printf("余额不足，取款失败。\n");
                break;
            }
            accounts[i].balance -= amount;
            printf("取款成功，当前余额为：%g\n", accounts[i].balance);
            break;
        }
        if (i == num_accounts - 1) {
            printf("账户不存在，取款失败。\n");
        }
    }
}

// 查询余额
void checkBalance() {
    int account_id;
    char password[7];
    printf("请输入账户号码：");
    scanf("%d", &account_id);
    printf("请输入密码：");
    scanf("%s", password);
    for (int i = 0; i < num_accounts; i++) {
        if (accounts[i].id == account_id) {
            if (strcmp(accounts[i].owner.password, password) != 0) {
                printf("密码错误，查询失败。\n");
                break;
            }
            printf("当前余额为：%g\n", accounts[i].balance);
            break;
        }
        if (i == num_accounts - 1) {
            printf("账户不存在，查询失败。\n");
        }
    }
}

// 销户
void closeAccount() {
    int account_id;
    char password[7];
    printf("请输入账户号码：");
    scanf("%d", &account_id);
    printf("请输入密码：");
    scanf("%s", password);
    for (int i = 0; i < num_accounts; i++) {
        if (accounts[i].id == account_id) {
            if (strcmp(accounts[i].owner.password, password) != 0) {
                printf("密码错误，销户失败。\n");
                break;
            }
            accounts[i].status = 2;
            printf("销户成功，欢迎下次光临。\n");
            break;
        }
        if (i == num_accounts - 1) {
            printf("账户不存在，销户失败。\n");
        }
    }
}

// 修改密码
void changePassword() {
    int account_id;
    char old_password[7], new_password[7];
    printf("请输入账户号码：");
    scanf("%d", &account_id);
    printf("请输入原密码：");
    scanf("%s", old_password);
    printf("请输入新密码：");
    scanf("%s", new_password);
    for (int i = 0; i < num_accounts; i++) {
        if (accounts[i].id == account_id) {
            if (strcmp(accounts[i].owner.password, old_password) != 0) {
                printf("原密码错误，修改失败。\n");
                break;
            }
            strcpy(accounts[i].owner.password, new_password);
            printf("修改成功。\n");
            break;
        }
        if (i == num_accounts - 1) {
            printf("账户不存在，修改失败。\n");
        }
    }
}

int main() {
    int choice;
    while (1) {
        printf("请选择业务：\n");
        printf("1、开户业务  2、续存业务  3、续取业务  4、销户业务  5、挂失业务\n");
        printf("6、批量业务  7、咨询估算业务  8、个人消费贷款业务  9、系统管理  0、返回\n");
        scanf("%d", &choice);
        switch (choice) {
            case 1:
                createAccount();
                break;
            case 2:
                deposit();
                break;
            case 3:
                withdraw();
                break;
            case 4:
                closeAccount();
                break;
            case 5:
                printf("该业务尚未开通。\n");
                break;
            case 6:
                printf("该业务尚未开通。\n");
                break;
            case 7:
                checkBalance();
                break;
            case 8:
                changePassword();
                break;
            case 9:
                printf("该业务尚未开通。\n");
                break;
            case 0:
                return 0;
            default:
                printf("无效的选项，请重新输入。\n");
        }
    }
}