导入random模块：import random
1.随机生成1个整数：random.randint(0,99)
2.随机生成1个实数：random.uniform(0,10)
3.随机选取0到100间的偶数：a = random.randrange(0, 101, 2)
4. 随机生成n个整数：[random.randint(0,100) for i inrange(n)]
5.随机选取1个字符串：random.choice(['剪刀', '石头', '布'])
6.多个字符中生成指定数量的随机字符：random.sample('zyxwvutsrqponmlkjihgfedcba',5)
7.多个字符中选取指定数量的字符组成新字符串：''.join(random.sample(['z','y','x','w','v','u','t','s','r','q','p','o','n','m','l','k','j','i','h','g','f','e','d','c','b','a'], 5))
8.列表（多个元素）打乱排序：random.shuffle( [1, 2, 3, 4, 5, 6, 7, 8, 9, 0])