Python language variables 1 (numeric, String, Boolean)

1. Values

integer : 2,-2

Long integer : 2**1024, 2**2048 (really can very ~ long ~ ~ ~, hand residual forget a 2**100000,idle really to fight out, ORZ)

floating point : 7.05, 1E2 (100.0), 2.3e4.5 (Invalid syntax)

plural : (1+2j), (1.2+3.4j), (1+1J) (must have parameter adornments in front of, otherwise unrecognized as plural)

Acomplex.real Acomplex.imag2

2. String

Interesting properties:

" Hello "+"  World,strhello World

quotation marks :

single quotation mark ('): ' Like ' this '

double quotation mark ("):" Like ' This "

three quotation marks ("or"""): Multiple lines of string, with the freedom to use single or double quotation marks in three quotation marks

escape character : \ (the end of the line indicates that the string continues on the next line)

Natural string : prefix plus R or R for Real

Unicode string : Prefix plus u or u

3. Boolean

True False

Print(3==5 )Print(3!=3 )Print("D">"e" )Print("H" inch "Hello" )Print("e"  not inch "Hello")

Python language variable 1 (numeric, String, Boolean)