python - 如何在该程序中实现函数来验证或无效帐号？

Question

这是我到目前为止的代码。名为 current_accts 的列表应该验证所有帐户。验证输入的帐号应该在名为 check_account() 的函数中完成，该函数将接受用户输入的帐户以及列表 current_accts。如果帐户有效，则此函数应返回 1，否则，如果帐户无效，则返回 0。谁能帮我添加这些功能吗？

accNum = int(input("Please enter your seven digit account number: "))   
if accNum == 5679035:
     print 'Account', accNum,'is valid'
elif accNum ==  8232322:
     print 'Account', accNum,'is valid'
elif accNum == 2134988:
     print 'Account', accNum,'is valid'
elif accNum == 6541234:
     print 'Account', accNum,'is valid'
elif accNum == 3984591:
     print 'Account', accNum,'is valid'
elif accNum == 1298345:
     print 'Account', accNum, 'is valid'
elif accNum == 7849123:
     print'Account', accNum, 'is valid'
elif accNum == 8723217:
     print'Account', accNum, 'is valid'
else:
     print "Account", accNum, "is NOT valid"

Answer 1

用Python实现起来非常简单。

valid_account_list = [1,2,3,4]
input_account = 4 # user input
def validate_account(input_account ,valid_account_list)
    if input_account in valid_account_list:
        return 1
    else:
        return 0