Python之is与==的区别
# -*-coding=utf-8 -*-a="Hello Python"
b="Hello Python"
print (a is b) #结果是：True
print (a == b) #结果是：True
a=
b=
print (a is b) #结果是：False
print (a == b) #结果是：True
a=
b=a
print (a is b) #结果是：True
print (a == b) #结果是：True
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