# def verify_code():
# lst1 = [] # 字母
# for i in range(65, 91):
# lst1.append(chr(i))
#
# for i in range(97, 123):
# lst1.append(chr(i))
#
# lst2 = []
# for i in range(10):
# lst2.append(i)
#
# import random
# from functools import reduce
# zimu = random.randint(1, 3) # 3 2
# shuzi = 4-zimu # 1 2
#
# z = random.sample(lst1, zimu)
# s = random.sample(lst2, shuzi)
#
# s1 = reduce(lambda x, y: str(x) + str(y), z, "")
# s2 = reduce(lambda x, y: str(x) + str(y), s, "")
# return s1 + s2
#
#
# for i in range(1000):
# print(verify_code(), end=" ")
#