python生成随机数、随机字符串

import random
import string

# 随机整数:包含头尾
print random.randint(1,50) 

# 随机选取0到100间的偶数:
print random.randrange(0, 101, 2)

# 随机浮点数:
print random.random()     [0,1)
print random.uniform(1, 10)

# 随机字符:
print random.choice('abcdefghijklmnopqrstuvwxyz!@#$%^&*()')

# 多个字符中生成指定数量的随机字符:
print random.sample('zyxwvutsrqponmlkjihgfedcba',5)

# 从a-zA-Z0-9生成指定数量的随机字符:
ran_str = ''.join(random.sample(string.ascii_letters + string.digits, 8))
print ran_str

# 多个字符中选取指定数量的字符组成新字符串:
prin ''.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))

# 随机选取字符串:
print random.choice(['剪刀', '石头', '布'])

# 打乱排序
items = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0]
print random.shuffle(items)

实际运用, 根据a b生成随机字符串, 用于生成测试数据

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# __author__ = 'James'
import random
import string

a, b = map(int, input().strip().split())
print(a, b)

source="whoisthebestcoderiam"

for i in range(a):
# 从a-zA-Z0-9生成指定数量的随机字符:
# ran_str = ''.join(random.sample(string.ascii_lowercase + "?*", 6))
ran_str = ''.join(random.sample(source + "?*", random.randint(2, 6)))
print(ran_str)

for i in range(b):
# 从a-zA-Z0-9生成指定数量的随机字符:
ran_str = ''.join(random.sample(source , random.randint(2, 20)))
print(ran_str)

posted on 2020-05-28 16:09  zhezhelin  阅读(...)  评论(...编辑  收藏

统计