指尖识别选购

import hashlib
from fingerprint_sensor import FingerprintSensor  # 假设有这样一个库

# 初始化传感器
sensor = FingerprintSensor()

def enroll_fingerprint(user_id):
    print("请放置手指进行注册...")
    fingerprint_data = sensor.capture()
    if fingerprint_data:
        # 将指纹数据哈希处理后存储
        hashed_data = hashlib.sha256(fingerprint_data).hexdigest()
        save_to_database(user_id, hashed_data)
        print("指纹注册成功！")
    else:
        print("指纹采集失败，请重试。")

def verify_fingerprint(user_id):
    print("请放置手指进行验证...")
    fingerprint_data = sensor.capture()
    if fingerprint_data:
        stored_data = get_from_database(user_id)
        if stored_data and hashlib.sha256(fingerprint_data).hexdigest() == stored_data:
            print("指纹验证成功！")
        else:
            print("指纹验证失败，请重试。")
    else:
        print("指纹采集失败，请重试。")

def save_to_database(user_id, fingerprint_data):
    # 假设有一个数据库操作函数
    pass

def get_from_database(user_id):
    # 假设有一个数据库操作函数
    pass

# 示例调用
enroll_fingerprint("user123")
verify_fingerprint("user123")