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# -*- coding: utf-8 -*-
import random
seed = "01"
sa = []
for i in range(20):
sa.append(random.choice(seed))
salt = ''.join(sa)
print salt
生成20位字符串
# -*- coding: utf-8 -*-
import random
seed = "01"
sa = []
for i in range(20):
sa.append(random.choice(seed))
salt = ''.join(sa)
print salt
生成20位字符串