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已知一个999999以下的数的md5值，通过撞库的方式解密：
将999999以下的数的md5值存入md5.txt：
import hashlib with open('md5.txt', 'w') as f: print('正在写入。。。') for i in range(
0, 999999): md5 = hashlib.md5(str(i).encode()).hexdigest() + '\n' f.write(md5)
print('写入完成。')
撞库解密：
def md5decrypt(num: str): with open('md5.txt', 'r') as f: result = 0 for line
in f: line = line.split('\n') if num == line[0]: print('解密成功，密文为：', result)
return result else: result += 1 print('解密失败！') return None if __name__ ==
'__main__': r = md5decrypt('d3e4029427aa766ffa42fd454b28d3b4') if r: print(
'解密成功：', r) else: print('解密失败！')
