Python common random number and random string method instance _python

Random integer:

Copy Code code as follows:

>>> Import Random
>>> Random.randint (0,99)
21st

randomly select an even number between 0 and 100:

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>>> Import Random
>>> random.randrange (0, 101, 2)
42

Random floating-point numbers:

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>>> Import Random
>>> Random.random ()
0.85415370477785668
>>> random.uniform (1, 10)
5.4221167969800881

Random characters:

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>>> Import Random
>>> random.choice (' abcdefg&#%^*f ')
' d '

Select a specific number of characters in more than one character:

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>>> Import Random
Random.sample (' Abcdefghij ', 3)
[' A ', ' d ', ' B ']

Select a specific number of characters to compose a new string in more than one character:

Copy Code code as follows:

>>> Import Random
>>> Import String
>>> String.Join (Random.sample ([' A ', ' B ', ' C ', ' d ', ' e ', ' f ', ' g ', ' h ', ' I ', ' J '], 3)). R
Eplace ("", "")
' FIH '

Random Pick String:

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>>> Import Random
>>> random.choice ([' Apple ', ' pear ', ' peach ', ' orange ', ' Lemon '])
' Lemon '

Shuffle:

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>>> Import Random
>>> items = [1, 2, 3, 4, 5, 6]
>>> random.shuffle (items)
>>> Items
[3, 2, 5, 6, 4, 1]

There are a lot of random functions that are not listed here,
References: http://docs.python.org/lib/module-random.html