First knowledge of Python

Python Basics (i): Operators: Arithmetic operations:

In addition to the basic +-*/, you need to know://To take the integer portion of the returned market quotient for example: 9//2---> 4, 9.0//2.0--->4.0

% is the remainder of the division returned by the remainder is 0 for example: 3 3---> 0, Surplus: 6 3--->2

Logical operators:

And, or, not

Comparison operators:

= = Determines whether two numbers are equal,! = Determines whether two numbers are unequal, >, <, >=, <=

Member operators:

　　　　　　　　

List_1 =[1,2,3,4,5]

In:

1 in list_1---> True
Not in:

6 in list_1---> False

Format character. Format (): Control accuracy:

PI = 3.1415926
Print ("PI is accurate to 3 digits after decimal point: {0:.3f}". Format (PI))
Pi is accurate to 3 digits after the decimal point: 3.142

Padding characters:

W_1 = "word"

"{0:-^30}". Format (w_1)---> '-------------word-------------'

If judgment and while for loop:

While loops generally determine the condition of a loop by whether the value is satisfied

A For loop is typically a pair of variables that can hold multiple data and traverse

List_2 = [1,2,3,4,5,66] for in list_2:    print(i)

Multiplication table ()

i = 0 while I <=9:    = 1 while     m <= i:        print(  '%d*%d=%d'% (m,i,m*i), end=')        +=1     Print(")    i+=1

Scissors

1 ImportRandom2 3Player = input ('Please enter: Scissors (0) stone (1) cloth (2):')4 5Player =Int (player)6 7Computer = Random.randint (0,2)8 9     if(player = = 0) and(Computer = = 2))or((Player ==1) and(computer = = 0))or(player = = 2) and(Computer = = 1)):Ten         Print('win, Haha, you're so awesome.') One     elifPlayer = =Computer: A         Print('a draw, or another inning.') -     Else: -         Print('lose, do not go, wash your hands and then come, the battle till Dawn')

Break and Continue

The function of break: To end the entire cycle

　　Continue: Used to end the cycle, followed by the next cycle

First knowledge of Python