擅长:python、mysql、java
<p>您还应将用户名输入get_passenger。username是一个局部变量,因此get_passenger无权访问它,因此会出现错误</p>
<pre><code>def main():
print("Welcome to the Tropical Airlines Ticket Ordering System")
print("Log in to the system using your username. A password is not required.")
username = input("Username: ")
login(username)
#After login, show the welcome message, and then the menu options
get_passenger(username)
#If any wrong input is made within the program, force the program to quit
def login(username):
#Log in to the system using the username
print("Welcome, " + username)
#After login, show the welcome message, and then the menu options
def get_passenger(username):
print("Dear " + username)
</code></pre>
<p>而且,返回用户名在这里没有任何作用,所以我删除了它</p>