Python Note: common functions and classes

1、OrderedDict 

　　Function: according to order of addition into a dictionary record key pair (s)

　　格式：from collections import OrderedDict 

 

2, Randine ()

　　Function: a function of generating a random number:

　　Format: from randon import randint

　　　　　　　　x = randint (1,100) # 1-100 generates a random number in

3、split( )

　　Function: a character string, a space as delimiter, split into a plurality of portions, and these portions are stored in a list

　　Format: variable name .split ()

　　Description: This function only temporarily displayed, no changes to the variable!

　　example:　

　　　　　Code: 　  name = 'the I Love the Python!'

　　　　　　　　　　x=name.split()

　　　　　　　　　　 print(x)
　　　　　　　　   print(name)

 

　　　　　Results:    [ 'the I', 'Love', 'the Python!']

　　　　　　　　　I love Python!