import random
import string
def verifycode(j):
'''
Author:xiexie
Fuction Name:verifycode
parameter:int j
return:codes
'''
result = ''
if j >26:
j = 26
else:
for i in range(j):
result+=random.choice(string.ascii_uppercase)
return result
res = verifycode(5)
print('验证码为{}'.format(res))