import random
from random import randint, choice, sample
# for i in range(20):
# test = random.randint(1, 10)#1-10之间的整数，包括1和10
# # test1=random.random()#0到1 之间的小数
# # test2=random.uniform(1,5)#从开始到结束之间的数，包括整数和小数
# print('我是test',test)
# # print('我是test2',test2)
#
# # print('我是test1',test1)
# def rand_int(start,stop):
# '''
#
# :param start: 开始数字
# :param stop: 结束或停止数字
# :return: 返回值
# '''
# a=random.random()#（0-1）之间的随机数
# print(a)
# print(a*(stop-start))
# return round(a*(stop-start)+start)
#
# print(rand_int(1,10))
#
# def rand_str(l=4,t=0):
# '''
#
# :param l: 指定参数与值
# :param t: 指定参数与值
# :return:
# '''
# s = ''
# if t == 0: # 纯数字
# for i in range(l):
# # s = s + chr(randint(ord('0'), ord('9')))
# s = s + str(randint(0, 9))
# print(s)
# elif t == 1: # 纯字母
# base_str = 'abcdefghijklmnopqrstuvwxyz'
# # s = ''.join(sample(base_str, l))#sample(base_str, l)从字符串中随机选出l个元素
# # y=choice(base_str)#choice(base_str)字符串中随机选择一个
# # print(y)
# # s = ''.join( y for i in range(l))#误区这里面的y与choice(base_str)并不等价，只是把值赋给了y
# s = ''.join( choice(base_str) for i in range(l))
# else: # 数字字母混合
# pass
# return s
#
#
# print(rand_str(4,0))#指定的参数只可以改变，也可以把指定参数l,t去除
