Python Random Number

These methods are located in the random module.

Random. Random (), same as the Javascript math. Random (), returns a floating point number between [0.0, 1 ).

Random. Uniform (a, B), return the floating point between [a, B]

 
Print random. Uniform (10, 20) print random. Uniform (20, 10) # ---- result (different results on different machines) #18.7356606526 #12.5798298022
 

Random. randint (a, B), returns an integer between [a, B]

Print random. randint (12, 20) # generated random number N: 12
 
Random. randrange ([start], stop [, step]), obtains a random number from the set that increments by the specified base number within the specified range. For example: Random. randrange (10,100, 2), the result is equivalent to obtaining a random number from the [10, 12, 14, 16,... 96, 98] sequence.
 
 
Random. randrange (10,100, 2) is equivalent to random. Choice (range (10,100, 2) in the result.
 
Random. Choice (sequence ). The sequence parameter indicates an ordered type. Sequence is not a specific type in Python, but a series of types. List, tuple, and string all belong to sequence.
Print random. choice ("Learn Python") print random. choice (["jgood", "is", "A", "handsome", "boy"]) print random. choice ("tuple", "list", "dict "))
 
 
Random. Shuffle (X [, random]) is used to disrupt the elements in a list.
 
 
P = ["Python", "is", "powerful", "simple", "and so on... "] Random. shuffle (p) print P # ---- result (the results on different machines may be different .) # ['Powerful', 'simple', 'is', 'python', 'and so on... ']
 
 
Random. Sample (sequence, k), random get the specified length from the specified sequence. The sample function does not modify the original sequence.
 
 
List = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] Slice = random. sample (list, 5) # randomly obtain 5 elements from the list, and return the print slice print list as a piece # The original sequence has not changed.