是否存在“不相等"的问题? Python中的运算符? [英] Is there a "not equal" operator in Python?

问题描述

您怎么说不相等?

像

if hi == hi:
    print "hi"
elif hi (does not equal) bye:
    print "no hi"

是否有等同于==的东西表示不相等"?

Is there something equivalent to == that means "not equal"?

推荐答案

使用!=.请参见比较运算符.为了比较对象身份，可以使用关键字is及其否定词is not.

Use !=. See comparison operators. For comparing object identities, you can use the keyword is and its negation is not.

例如

1 == 1 #  -> True
1 != 1 #  -> False
[] is [] #-> False (distinct objects)
a = b = []; a is b # -> True (same object)

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