当我运行此代码时,无论我输入什么,它总是出现“我同意!”。 任何帮助表示赞赏!
Pizza_opinion = input("Does pizza taste good? ")
if Pizza_opinion == "Yes" or "yes":
print("I agree! ")
elif Pizza_opinion == "No" or "no":
print ("I disagree...?")
答案 0 :(得分:1)
您没有正确使用条件 - 您不能使用or
这样的(您可以,但它不能做您的意思)。你基本上告诉Python if Pizza_opinion equals "Yes", or if "yes" evaluates to True (and it does) then print "I agree "
。使用:
if Pizza_opinion == "Yes" or Pizza_opinion == "yes":
print("I agree! ")
elif Pizza_opinion == "No" or Pizza_opinion == "no":
print ("I disagree...?")
或者:
if Pizza_opinion in ("Yes", "yes"):
print("I agree! ")
elif Pizza_opinion in ("No", "no"):
print ("I disagree...?")
或者简单地说:
if Pizza_opinion.lower() == "yes":
print("I agree! ")
elif Pizza_opinion.lower() == "no":
print ("I disagree...?")
答案 1 :(得分:1)
您正在考虑条件检查,Pizza_opinion
等于"是"或等于"是"但它真正做的是检查Pizza_opinion
是否等于"是"或者如果字符串文字"是"这是真的,它始终如此。
与elif条件相同的问题。
解决方案是重复使用"是":
进行的等式检查if Pizza_opinion == "Yes" or Pizza_opinion == "yes":