Python Quick Start Tutorial

python version

Python's current version is divided into 2.7 and 3.5, and the two versions of the code are currently incompatible, looking at the Python version number:

Python--version

Basic data TypesNumber Type

The use of integral and floating-point data is basically consistent with other programming languages:

x = 3Print(Type (x))Print(x)Print(x + 1)Print(x-1)Print(X * 2)Print(x * * 2) x+ = 1Print(x) x*=2Print(x) y= 2.5Print(Type (y))Print(Y,y + 1,y * 2,y * * 2) M= 5N= 3Print(5/3)#precise division, preserving the decimal partPrint(5//3)#take only the integer part of the division resultPrint(5% 3)#two integers to divide the remainder ofPrint(Divmod (M,n))#back (x//y, x%y)Print(Pow (m,n))#Power Calculationa=-3Print(ABS (a))#Absolute Value CalculationPrint(-a)#Take counterPrint(+a) C= 2-3j#pluralPrint(Type (c))Print(c.real)#Real DepartmentPrint(C.IMAG)#Imaginary Part

Results:

<class'int'>3426948<class'float' >2.5 3.5 5.0 6.251.666666666666666712(1, 2)12533-3<class' Complex '>2.0-3.0

Note that unlike other languages, there is no self-adding, self-subtraction operation in Python, that is, there is no following operation:

i++I--

Python Quick Start Tutorial