python - 如果答案无效，程序将不会打印并再次循环

Question

我有一个程序，我想检查所选 field 是否可以容纳人数(noPeople)。 如果无法容纳人数，则返回 FALSE；如果有效，则返回 TRUE。

print('''
    [1] vip room(10 person)            [4]Banquet Hall(200 person)
    [2] executive room(30 person)      [5]Chamber Hall(500 person)
    [3] pool site(50 person)           [6]Concert Hall(1000 person)
    ''')
def validateVenue(choice,venueList,noPeople):

    if choice == '1':
        noPeople <= (int(venueList[0]['VIP Room']))
        return True

    elif choice == '2':
        noPeople <= (int(venueList[0]['Executive Room']))
        return True

    elif choice == '3':
        noPeople <= (int(venueList[0]['Pool Site']))
        return True

    elif choice == '4':
        noPeople <= (int(venueList[0]['Banquet Hall']))
        return True

    elif choice == '5':
        noPeople <= (int(venueList[0]['Chamber Hall']))
        return True

    elif choice == '6':
        noPeople <= (int(venueList[0]['Concert Hall']))
        return True

    else:
        print('Invalid venue, please choose again.')
        return False

while True:
    noPeople = int(input('people:'))
    venueList = [{'VIP Room':10,'Executive Room':30,'Pool Site':50,'Banquet Hall':200,'Chamber Hall':500,'Concert Hall':1000}]
    choice = input('Please select a venue:')

    if validateVenue(choice,venueList,noPeople):
        break

而且我的程序似乎不想循环，即使房间无法容纳足够的人，它也不会打印无效的 field 。

[1] vip room(10 person)            [4]Banquet Hall(200 person)
[2] executive room(30 person)      [5]Chamber Hall(500 person)
[3] pool site(50 person)           [6]Concert Hall(1000 person)

people:50
Please select a venue:1
>>> 

我是否遗漏了什么或者我做错了什么？任何建议和帮助。谢谢

Answer 1

你犯了一些小错误。缺少 if 以及最后一个错误的情况。

print('''
    [1] vip room(10 person)            [4]Banquet Hall(200 person)
    [2] executive room(30 person)      [5]Chamber Hall(500 person)
    [3] pool site(50 person)           [6]Concert Hall(1000 person)
    ''')
def validateVenue(choice,venueList,noPeople):

    if choice == '1':
        if noPeople <= (int(venueList[0]['VIP Room'])):
            return True

    elif choice == '2':
        if noPeople <= (int(venueList[0]['Executive Room'])):
            return True

    elif choice == '3':
        if noPeople <= (int(venueList[0]['Pool Site'])):
            return True

    elif choice == '4':
        if noPeople <= (int(venueList[0]['Banquet Hall'])):
            return True

    elif choice == '5':
        if noPeople <= (int(venueList[0]['Chamber Hall'])):
            return True

    elif choice == '6':
        if noPeople <= (int(venueList[0]['Concert Hall'])):
            return True

    print('Invalid venue, please choose again.')
    return False

venueList = [{'VIP Room':10,'Executive Room':30,'Pool Site':50,'Banquet Hall':200,'Chamber Hall':500,'Concert Hall':1000}]

choice = input('Please select a venue:')
noPeople = int(input('people:'))

while not validateVenue(choice,venueList,noPeople):
    choice = input('Please select a venue:')
    noPeople = int(input('people:'))

虽然您可以使用 while true 和 break 我认为检查 while 头中的条件更优雅。