import os

username = "HENFA0310" password = "1234598765"

def login(): input_username = input("請輸入帳號：") input_password = input("請輸入密碼：") if input_username == username and input_password == password: print("登入成功！") return True else: print("帳號或密碼錯誤！") return False

def upload_file(): if not os.path.exists("uploads"): os.makedirs("uploads") file_name = input("請輸入要上傳的檔案名稱：") with open(f"uploads/{file_name}", "w") as file: file_content = input("請輸入檔案內容：") file.write(file_content) print("檔案已成功上傳！")

def download_file(): file_name = input("請輸入要下載的檔案名稱：") try: with open(f"uploads/{file_name}", "r") as file: file_content = file.read() print("檔案內容：") print(file_content) except FileNotFoundError: print("檔案不存在！")

def main(): logged_in = False while not logged_in: logged_in = login()

while True:
    print("\n1. 上傳檔案")
    print("2. 下載檔案")
    print("3. 登出")
    choice = input("請選擇操作：")
    
    if choice == "1":
        upload_file()
    elif choice == "2":
        download_file()
    elif choice == "3":
        print("已登出。")
        break
    else:
        print("請輸入有效選項！")

if name == "main": main()