import string
import random
letters_num= random.randint(1,8)
numbers_num = 9-letters_num
pass_wd = " "
for i in range(9):
if random.randint(0,1):#0和1随机获取,1获取字母,0获取数字
pass_wd+=string.ascii_letters[random.randint(0,52)]
else:
pass_wd+="0123456789"[random.randint(0,9)]
print (pass_wd)