[英]Syntax Error on elif statement in Python
我在使用Python 2.7编写的代码时遇到了一些麻烦。 它给我一个关于elif语句的语法错误,但是没有解释,我在代码中找不到任何合理的错误。 (字体是我定义的方法。)
num = randrange(-25,15)
""" Toxic """
if num >= -25 and num < -10:
responses = ["Ugh, nasty.", "That was absolutely disgusting.", "My stomach feels like it's going to explode.", "Pardon me if I puke."]
typeline(responses[randrange(0,4)], "jack")
return [num, "Jack ate a VERY TOXIC FRUIT and survived.", "Jack ate a VERY TOXIC FRUIT and died."]
""" Mildly poisonous """
elif num >= -10 and num < 0: """ SYNTAX ERROR HERE """
responses = ["Yuck", "It's kinda bitter.", "Tastes like an unripe banana.", "It's not so bad."]
typeline(responses[randrange(0,4)], "jack")
return [num, "Jack ate a MILDLY TOXIC FRUIT and survived.", "Jack ate a MILDLY TOXIC FRUIT and died."]
""" Healthy """
else:
responses = ["Definitely not too bad", "It's almost kind of tasty!", "Should I make a jam out of this?", "This is my new favorite fruit."]
typeline(responses[randrange(0,4)], "jack")
return [num, "Jack ate a HEALTHY FRUIT and was rescued.", "Jack ate HEALTHY FRUIT and survived."]
错误:
File "<stdin>", line 9
elif num >= -10 and num < 0:
^
SyntaxError: invalid syntax
在elif
之前你有一个未缩进的三引号字符串文字:
""" Mildly poisonous """
elif num >= -10 and num < 0:
"""..."""
字符串文字不是多行注释。 他们创建字符串,只是因为你忽略了生成的字符串对象,Python忽略了这一行。 它们仍然是Python语法的一部分; 使用它们时不能忽略缩进规则。
使用正确的#
注释,而不是:
# Toxic
if num >= -25 and num < -10:
# ...
# Mildly poisonous
elif num >= -10 and num < 0:
# ...
# Healthy
else:
# ...
由于语法完全忽略了注释,因此它们的缩进方式无关紧要。
如果必须使用""" ... """
三重引用的字符串作为“块注释”,则必须将它们缩进为它们所在的if
或elif
块的一部分:
""" Toxic """
if num >= -25 and num < -10:
# ...
""" Mildly poisonous """
elif num >= -10 and num < 0:
# ...
""" Healthy """
else:
# ...
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