爲什麼我的IF語句不適用於python？

import random 
circlediameter = random.randint(1,99) 
pi = 3.142 
print("The circle diameter is",circlediameter," Find the area") 

#find 4 possible answers 
circleanswer1 = circlediameter/pi 
circleanswer2 = circlediameter*pi 
circleanswer3 = circlediameter+pi 
circleanswer4 = circlediameter 

#makes sure all numbers are integers 
circleanswer1 = int(circleanswer1) 
circleanswer2 = int(circleanswer2) 
circleanswer3 = int(circleanswer3) 
circleanswer4 = int(circleanswer4) 

answerlist = [circleanswer1 , circleanswer2 , circleanswer3 , circleanswer4] 

#shuffles the list 
random.shuffle(answerlist) 




#answer 2 is always the right answer 
print("Four options are: ", answerlist) 


#user enters a number 
useranswercircle = input("Please choose an answer: ") 
int(useranswercircle) 


str(useranswercircle) 
str(circleanswer2) 

if useranswercircle == circleanswer2: 
print("EEE")

我比較兩個整數，爲什麼我的IF語句不工作，當我比較兩個數字。我已經轉換了兩個變量爲整數，它仍然沒有成功比較爲什麼我的IF語句不適用於python？

來源

2017-08-04 Jeevan S

'str（useranswercircle）'不會*將'useranswercircle'轉換爲字符串：它會產生一個等價的字符串。所以你應該寫'useranswercircle = str（useranswercircle）'。 –

'int（useranswercircle）' - same^ –

最後一行應該縮進 – narn

嘗試用這個轉換：

import random 
circlediameter = random.randint(1,99) 
pi = 3.142 
print("The circle diameter is",circlediameter," Find the area") 

#find 4 possible answers 
circleanswer1 = circlediameter/pi 
circleanswer2 = circlediameter*pi 
circleanswer3 = circlediameter+pi 
circleanswer4 = circlediameter 

#makes sure all numbers are integers 
circleanswer1 = int(circleanswer1) 
circleanswer2 = int(circleanswer2) 
circleanswer3 = int(circleanswer3) 
circleanswer4 = int(circleanswer4) 

answerlist = [circleanswer1 , circleanswer2 , circleanswer3 , circleanswer4] 

#shuffles the list 
random.shuffle(answerlist) 


#answer 2 is always the right answer 
print("Four options are: ", answerlist) 


#user enters a number 
useranswercircle = input("Please choose an answer: ") 

# EDIT: 
# HERE IS THE TRICK 
useranswercircle = int(useranswercircle) 

if useranswercircle == circleanswer2: 
    print("EEE")

來源

2017-08-04 14:20:20 rakwaht

這個技巧是將'useranswercircle'轉換爲int，所以它可以與'circleanswer2' – rakwaht

比較起作用，感謝您的幫助！ –

rev是什麼意思？ – rakwaht

您需要縮進打印：

if useranswercircle == circleanswer2: 
    print("EEE")

來源

2017-08-04 14:22:54

嘗試這樣 -

if str(useranswercircle) == str(circleanswer2): 
    print("EEE")

，並刪除這兩個語句 -

str(useranswercircle) 
str(circleanswer2)

來源

2017-08-04 14:23:40

爲什麼我的IF語句不適用於python？

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