random模块常用函数

random模块常用函数:

from random import *

# Random float:  0.0 <= x < 1.0
random()                             

# Random float:  2.5 <= x < 10.0
uniform(2.5, 10.0)                  

# Integer: 0 <= x <= 9
randrange(10)                        

# Even integer from 0 to 100 inclusive
randrange(0, 101, 2)                 

# Single random element from a sequence
choice(['win', 'lose', 'draw'])

# 打乱序列元素顺序,注意是对原序列操作,不会产生新序列,因此要求原序列是可改变的
deck = 'ace two three four'.split()
shuffle(deck)

items = [1, 2, 3, 4, 5, 6]
random.shuffle(items)
print(items)
#返回从序列中选取k个不重复元素的列表(产生新序列,不改变原序列,因此原序列可以为元组、字符串等) sample([10, 20, 30, 40, 50], k=4)

''.join(random.sample('abcdefghijklmnopqrst', 5)) sample(range(
10000),30) #要打乱元组或字符串的顺序,可以变通的使用sample() atuple=(1,2,3,4,5,6,7) sample(atuple, len(atuple))

 

posted @ 2019-02-24 19:54  梦想与现实边缘  阅读(225)  评论(0编辑  收藏  举报