Python练习册，第 0001 题

import random
import string

codesnumber = 200
codeslength = 12

def makeACode( length ):
codes = '';
for i in range(length) :
codes += random.choice(string.ascii_letters + string.digits)
return codes;

def makeCodes( numbers, length ):
codesset = [];
for i in range(numbers):
codesset.append(makeACode(length))
return codesset

print makeCodes(codesnumber, codeslength)