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我正在尝试创建模拟布尔电路的代码，并且应该通过布尔电路基于布尔逻辑返回真或假（一或零）。我将在下面发布电路图。但是我得到的输出是：

Ran 9 tests in 0.141s
OK

电路 1： 在此处输入图像描述 电路 2： 在此处输入图像描述 代码如下：

#!/usr/bin/python
import unittest

# An example: exercise 12.3.1
def circuit_3_1(x, y):
    a1 = x + y
    a2 = not y

    # note: the end result should be returned as 0/1
    #   - bool() transforms any sum larger than 0 into True (False otherwise)
    #   - int() transforms any True into 1 (0 otherwise)
    # int( bool ( n )) will therefore transforms any sum larger than 0 into 1 (0 otherwise)
    return int( bool(a1 and a2))

def circuit_3_2(x, y):
    a1 = not x
    a2 = not y
    a3 = (not a1) and (not a2)


    return int( bool((a3)))
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def circuit_3_4(x, y, z):
    a1 = (not((not x) and y and z))
    a2=((not x) or y or(not z))
    return int( bool(a1 and a2))


class circuits_unit_tests( unittest.TestCase ):

    def test_circuit_3_1(self):
        self.assertEqual( circuit_3_1(0,0), 0)
        self.assertEqual( circuit_3_1(0,1), 0)
        self.assertEqual( circuit_3_1(1,0), 1)
        self.assertEqual( circuit_3_1(1,1), 0)

    def test_circuit_3_4_000(self):
        self.assertEqual( circuit_3_4(0,0,0), 1)

    def test_circuit_3_4_001(self):
        self.assertEqual( circuit_3_4(0,0,1), 1)

    def test_circuit_3_4_010(self):
        self.assertEqual( circuit_3_4(0,1,0), 1)

    def test_circuit_3_4_011(self):
        self.assertEqual( circuit_3_4(0,1,1), 0)

    def test_circuit_3_4_100(self):
        self.assertEqual( circuit_3_4(1,0,0), 1)

    def test_circuit_3_4_101(self):
        self.assertEqual( circuit_3_4(1,0,1), 0)

    def test_circuit_3_4_110(self):
        self.assertEqual( circuit_3_4(1,1,0), 1)

    def test_circuit_3_4_111(self):
        self.assertEqual( circuit_3_4(1,1,1), 1)

def main():
        unittest.main()

if __name__ == '__main__':
        main()
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