#encoding=utf-8  
  
print '中国'  
  
#以指定的概率获取元素 以一个列表为基准概率，从一个列表中随机获取元素  
  
import random  
  
def random_pick(some_list, probabilities):  
    x = random.uniform(0,1)  
    cumulative_probability = 0.0  
    for item, item_probability in zip(some_list, probabilities):  
        cumulative_probability += item_probability  
        if x < cumulative_probability:break  
    return item  
  
some_list = [1,2,3,4]  
probabilities = [0.2,0.1,0.6,0.1]  
  
print random_pick(some_list,probabilities)  
      
  
#根据权重来获取 核心在于权重乘以 就相当于次数  
  
def random_pick_odd(some_list, odds):  
    print 'table2'  
    table = [z for x,y in zip(some_list,odds) for z in [x] * y]   
    print table  
    return random.choice(table)  
      
some_list = [1,2,3,4]  
odds=[3,1,4,2]  
  
print random_pick_odd(some_list,odds)  
  
  
#for item in random_picks()  

打印结果如下：

中国
1
table2
[1, 1, 1, 2, 3, 3, 3, 3, 4, 4]
4