Computer secondary exam (Python) _ synchronous assignment, reference
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1, synchronous assignment
Synchronous assignment refers to all expressions on the right side of the same operation equal sign, and assigns a variable corresponding to the left side of the corresponding equal sign.
like:
>>>n = 3
>>>x, y = n+1, n+2
>>>x
4
>>>y
5Another application of synchronization assignment is the value of interchange variables. like
>>>x, y = y, x
>>>x
5
>>>y
42, reference
Refers to the existing function code other than the program. Reserved Use of Import:
IMPORT <Ribbon Name>
After reference, use the <Range Name>. <Function name> (parameter) mode calls the specific function
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