Python變量

我把在打印語句的變量，我得到這個錯誤信息：Python變量

Traceback (most recent call last): 
    File "C:\Users\Samuel\workspace\First Python Project\com\fireboxtraining\Person.py", line 13, in <module> 
    print("Dude, %s is not yes or no... come on.") % (game) 
TypeError: unsupported operand type(s) for %: 'NoneType' and 'str'

這是我的代碼：

''' 
Created on Apr 17, 2017 

@author: Samuel 
''' 
game = input("Would you like to play a game? Please answer with \"Yes\" or \"No\".") 
game = game.lower() 
if game == "yes": 
    print("Great! Let's play.") 
elif game == "no": 
    print("Ok, I guess we won't play.") 
else: 
    print("Dude, %s is not yes or no... come on.") %(game)

我剛學蟒蛇，我不明白爲什麼這不起作用。請幫忙！

來源

2017-04-19 Natan Garanto

你需要時，你不輸入任何答覆處理情況。值爲空白或無，因此打印它沒有意義。 – anonyXmous

最後一行應該是'print（「夥計，％s不是是或不是......」％（遊戲））''。注意'print'右括號。 – pkuphy

這是一個簡單的圓括號。您有：

print("Dude, %s is not yes or no... come on.") %(game)

它應該是：

print("Dude, %s is not yes or no... come on." % (game))

來源

2017-04-19 02:43:58

回答

相關問題