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This article mainly explains "the priority of Python logic operation". The content of the explanation is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "the priority of Python logic operation".

1. And 'and'

If the left side of the and is False, the left result (False) is returned directly; if the left side of the and is True, the returned result depends on the value on the right. You need true on both sides to return true;. The right side is false, so false is returned as a whole.

2. Or'or'

If the left side of the or is True, the left result (True) is returned directly; if the left side of the or is False, the returned result depends on the value on the right. As long as one side is true, true; will be returned. Although the right side is false, the overall true will be returned.

3. Not 'not'

Not is easy to understand, which is a reverse operation. You need true on both sides to return the current reverse of true;. Currently, false is returned for true, and true is currently returned for false.

For example: not True---- > False;not False--- > True

4. Examples:

# and or not

# priority, () > not > and > or

# print (2 > 1 and 1

< 4) # print(2 >

1 and 1

< 4 or 2 < 3 and 9 >

6 or 2

< 4 and 3 < 2) # T or T or F #T or F # print(3>

4 or 42) # T

# print (2 > 1 and 3

< 4 or 4 >

5 and 2

< 1) # T # print(1 >

2 and 3

< 4 or 4 >

5 and 2 > 1 or 9

< 8) # F # print(1 >

1 and 3

< 4 or 4 >

5 and 2 > 1 and 9 > 8 or 7

< 6) # F # print(not 2 >

1 and 3

< 4 or 4 >

5 and 2 > 1 and 9 > 8 or 7

< 6) # F #ps int ---->

Bool non-zero conversion to bool True 0 conversion to bool is False

# print (bool (2))

# print (bool (- 2))

# print (bool (0)

# # bool-- > int

# print (int (True)) # 1

# print (int (False)) # 0

"''x or y x True, then return xdistinct'"

# print (1 or 2) # 1

# print (3 or 2) # 3

# print (0 or 2) # 2

# print (0 or 100) # 100

# print (2 or 100 or 3 or 4) # 2

# print (0 or 4 and 3 or 2)

'x and y x True, then return yawness.'

# print (1 and 2)

# print (0 and 2)

Print (2 or 1

< 3) print(3 >

1 or 2 and 2)

5. Priority of logical operation

The priority of the operator is not > and > or. This priority knowledge point will be applied to the composite operation in the same way as addition, subtraction, multiplication and division. And has a high priority in or and and. If the priority of or is greater than and, the priority of not in false,not and and should be high; if the priority of and is higher than not, true should be returned.

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