習題28 - 布林運算練習

這次是學習布林運算(Boolean expression).

not	真/假
Not False	True
Not True	False

or	真/假
True or False	True
True or True	True
False or True	True
False or False	False

and	真/假
True and False	False
True and True	True
False and True	False
False and False	False

not or	真/假
not (True or False)	False
not (True or True)	False
not (False or True)	False
not (False or False)	True

not and	真/假
not (True and False)	True
not (True and True)	False
not (False and True)	True
not (False and False)	True

!= (不等於)	真/假
1 != 0	True
1 != 1	False
0 != 1	True
0 != 0	False

== (等於)	真/假
1 != 0	False
1 == 1	True
0 == 1	False
0 == 0	True

然後用Windows的cmd, 執行python.

C:\Windows\System32>python
Python 3.6.4 (v3.6.4:d48eceb, Dec 19 2017, 06:54:40) [MSC v.1900 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> True and True
True
>>>
>>> False and True
False
>>>
>>> 1 == 1 or 2 == 1
True
>>>
>>> "test" == "test"
True
>>>
>>> 1 == 1 or 2 != 1
True
>>>
>>> True and 1 == 1
True
>>>
>>> False and 0 != 0
False
>>>
>>> "test" == "testing"
False
>>>
>>> 1 != 0 and 2 == 1
False
>>>
>>> "test" != "testing"
True
>>>
>>> "Test" == 1
False
>>>
>>> not (True and False)
True
>>>
>>> not (1 == 1 and 0 != 1)
False
>>>
>>> not (10 == 1 or 1000 == 1000)
False
>>>
>>> not (1 != 10 or 3 == 4)
False
>>>
>>> not ("testing" == "testing" and "Zed" == "Cool Guy")
True
>>>
>>> 1 == 1 and not ("Testing" == 1 or 1 == 0)
True
>>>
>>> "chunky" == "bacon" and not (3 == 4 or 3 == 3)
False
>>>
>>> 3 == 3 and not ("testing" == "testing" or "Python" == "Fun")
False
>>>

完成


最初發表 / 最後更新: 2018.09.07 / 2018.09.07