Python basic syntax

1. Print

Print as function in 3.x

Print ("1", "2") i.e. Output 1 2

2.x print is not a function, so

Print "1", "2" i.e. output 1 2

2. Input and Raw_inputraw_input

Raw_input () treats all input as a string and returns the string type. As a gets ()

Like what:

gender = Raw_input ("what' s your gender? ") " )print(gender) Input: Male output: Male'str'>

Input

Input () under the 3.x version:

Input () is equivalent to eval (raw_input (prompt)) when inputs are not for shaping and floating point types

Where eval evaluates the string str as a valid expression and returns the result of the calculation. Like what:

string conversion to list " [ [up], [3,4], [5,6], [7,8], [9,0]] ">>>type (a)'str'>>>> b = eval (a)  Print  b[[1, 2], [3, 4], [5, 6], [7, 8], [9, 0]]>>> type (b)'
   
    list
    '>
   

If the input is an integer or a floating-point number, it is returned directly. can be used as input, output template input.

As follows:

c = input ("pleaseinput number")print  cprint  type (c)
Input: 2.31
Result:'float'>

Python basic syntax