10 月 092020
 
#赋值变量
the_Eddie = 'Eddie'
name = 'Eddie'
#打印比较结果
print(the_Eddie == name)
print(the_Eddie is name)
#在python中任何对象都可以判断其布尔值
#除了0、None和所有空的序列与集合布尔值为False外,其他都为True
print('bool(0)', bool(0))
print('bool([])', bool([]))
print('bool('')', bool(''))
print('bool(False)', bool(False))
print('bool(None)', bool(None))
PS C:\Users\harveymei> & C:/Users/harveymei/AppData/Local/Programs/Python/Python39/python.exe c:/Users/harveymei/hello.py
True
True
bool(0) False
bool([]) False
bool() False
bool(False) False
bool(None) False
PS C:\Users\harveymei>

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