# 创建一个 RW_Password 字典

rw_password = {

    "user1": "password1",

    "user2": "password2",

    "user3": "password3"

}



# 验证用户身份

username = input("请输入用户名：")

if username in rw_password:

    print(f"{username} 的密码是：{rw_password[username]}")

else:

    print("用户名不存在")