def md5_poj(self, md5_value, k):
        if len(md5_value) != 32:
            print("error")
            return
        md5_value = md5_value.lower()
        # permutations() 全排列
        for item in permutations(all_letters, k):
            item = "".join(item)
            if item == "hongrisec@2019":
                print(item)
            if md5(item.encode()).hexdigest() == md5_value:
                print('\n success: ' + md5_value + ' ==> ' + item)
                self.__mdfive = 1

def main(self):
        NT_md5 = input("請(qǐng)?zhí)顚?xiě)MD5：")
        start_time = time()
        t_list = []
        print("正在查詢(xún)...")
        # 添加線程
        t_first = threading.Thread(target=self.md5_first, args=(NT_md5,))
        t_first.daemon = 1
        t_first.start()
        for k in range(5, 18):
            t = Process(target=self.md5_poj, args=(NT_md5, k))
            # t = threading.Thread(target=self.md5_poj, args=(NT_md5, k))
            t.daemon = 1    # 守護(hù)程序
            t_list.append(t)
        # 啟動(dòng)所有線程
        for i in t_list:
            i.start()
        # 當(dāng) __mdfive == 1 時(shí)結(jié)束所有線程
        while 1:
            if self.__mdfive:
                break
        print("\n查詢(xún)結(jié)束!")
        print('使用了 %f 秒'%(time() - start_time))

import threading
from multiprocessing import Process
from hashlib import md5
from itertools import permutations
from string import ascii_letters, digits, ascii_lowercase, ascii_uppercase
from time import time
all_letters = ascii_lowercase + '.,;@' + digits
class MDfive:
    def __init__(self):
        self.__mdfive = 0

    def md5_poj(self, md5_value, k):
        if len(md5_value) != 32:
            print("error")
            return
        md5_value = md5_value.lower()
        # permutations() 全排列
        for item in permutations(all_letters, k):
            item = "".join(item)
            if item == "hongrisec@2019":
                print(item)
            if md5(item.encode()).hexdigest() == md5_value:
                print('\n success: ' + md5_value + ' ==> ' + item)
                self.__mdfive = 1
    # 判斷 md5 是否與空匹配
    def md5_first(self, md5_firstvalue):
        if len(md5_firstvalue) != 32:
        elif md5_firstvalue == "31d6cfe0d16ae931b73c59d7e0c089c0":
            print("\n密碼為空!")
            self.__mdfive = 1

    def main(self):
        NT_md5 = input("請(qǐng)輸入MD5：")
        start_time = time()
        t_list = []
        print("正在查詢(xún)...")
        # 添加線程
        t_first = threading.Thread(target=self.md5_first, args=(NT_md5,))
        t_first.daemon = 1
        t_first.start()
        for k in range(5, 18):
            t = Process(target=self.md5_poj, args=(NT_md5, k))
            # t = threading.Thread(target=self.md5_poj, args=(NT_md5, k))
            t.daemon = 1    # 守護(hù)程序
            t_list.append(t)
        # 啟動(dòng)所有線程
        for i in t_list:
            i.start()
        # 當(dāng) __mdfive == 1 時(shí)結(jié)束所有線程
        while 1:
            if self.__mdfive:
                break
        print("\n查詢(xún)結(jié)束!")
        print('使用了 %f 秒'%(time() - start_time))

if __name__ == '__main__':
    MDfive().main()