Python indented coding + arithmetic operator + method of definition and assignment
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1. Indented coding
Interpretation type: there is no compilation link, run the execution code directly to show the effect
Indented coding style:
The code block does not use curly braces {} to contain class and function logic judgment code
Logical judgment:
A b='51CTO'f=Trueif 'Hello' FRV cymbprint (c) else:c=a+bprint (c)
The effect is as follows:
2. Arithmetic operator
Features: easy to learn, read, maintain, cross-platform, extensible, etc.
Operator
Serial number
Arithmetic operator
Symbol
one
+
Plus sign
two
-
Minus sign
three
*
Multiply by a sign
four
/
Divide by sign
five
%
Take the mold
six
**
Power, which returns the y power of x
seven
/ /
Rounding down
The code is as follows:
# add, subtract, multiply and divide aq2022-2*16/11print (value of'a:'+ str (a)) # take module b=2022%2c=2022%2000print (value of'b:'+ str (b)) print (value of'c:'+ str (c)) # power of d=2**5print (value of'd:'+ str (d)) print ('2analogy = 2*2*2*2*2:'+str (2' e) # rounding e=23//2print (value of'e:'+ str (e))
The effect is as follows:
Definition and assignment
Object-oriented: programming techniques that support object-oriented style or code encapsulation in objects
Variable definition and assignment
Also use the equal sign = for variable definition and assignment
Variables are created and saved to memory when they are defined and assigned
Method 1. The code is as follows:
# variable definition and assignment method-a = 'Hello' b='51CTO'c=a+bprint (c)
Assignment method 2, the code is as follows:
# variable definition and assignment method 2 d, eMagnedDefinition 'Hello','51 CTO relegated and assigned eprint (f)
The effect is as follows:
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