随机数:
>>> import random
>>> random.randint(0,99)
21
随机选取0到100间的偶数:
>>> import random
>>> random.randrange(0, 101, 2)
42
随机浮点数:
>>> import random
>>> random.random()
0.85415370477785668
>>> random.uniform(1, 10)
5.4221167969800881
随机字符:
>>> import random
>>> random.choice('abcdefg&#%^*f')
'd'
多个字符中选取特定数量的字符:
>>> import random
random.sample('abcdefghij',3)
['a', 'd', 'b']
多个字符中选取特定数量的字符组成新字符串:
>>> import random
>>> import string
>>> string.join(random.sample(['a','b','c','d','e','f','g','h','i','j'], 3)).r
eplace(" ","")
'fih'
随机选取字符串:
>>> import random
>>> random.choice ( ['apple', 'pear', 'peach', 'orange', 'lemon'] )
'lemon'
洗牌:
>>> import random
>>> items = [1, 2, 3, 4, 5, 6]
>>> random.shuffle(items)
>>> items
[3, 2, 5, 6, 4, 1]
一个猜字游戏例子:
#!/bin/python2
import random
realnumber=random.randint(0,100)
i=1
print "the number guess play"
number=int(raw_input("the number between 0-100 ,you can guess: "))
theFirstRight=True
while number != realnumber:
if number < realnumber:
number=int(raw_input("little, and again: "))
else:
number=int(raw_input("bit, and again: "))
i+=1
theFirstRight=False
if theFirstRight:
print "great, right for once.."
else:
print "you're right so long..."
print "you guess for %i times.." %i