Question

这是我正在尝试获取新行的代码。可悲的是，它只是重写了该计划的第一行。到底是怎么回事？如果你能帮到我，我将非常感激。

import itertools
import string
import sys, os, cmd

from datetime import datetime
FMT = '%Y-%m-%d %H:%M:%S'
passwordstried = 0


numbers = ['1', '2', '3', '4', '5', '6', '7', '8', '9', '0',]
symbols = ["!","@","#","$","%","^","&","*","(",")","_","-","'",'"',":",";","+","=","[","{","]","}","<",",",">",".","?","/","|","\"","~","`"]
lowercaseletters = ["q","w","e","r","t","y","u","i","o","p","a","s","d","f","g","h","j","k","l","g","h","j","k","l","z","x","c","v","b","n","m"]
uppercaseletters = ["Q","W","E","R","T","Y","U","I","O","P","A","S","D","F","G","H","J","K","L","G","H","J","K","L","Z","X","C","V","B","N","M"]


stuff = lowercaseletters + uppercaseletters + numbers + symbols


if (input("Do you have the length of the password?") == 'y'):
    lengthstartingvalue = int(input("Password length: "))
else:
    lengthstartingvalue = 1


starttime = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
print(starttime)


starttime = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
for L in range(lengthstartingvalue, len(stuff)+1):
    for subset in itertools.combinations_with_replacement(stuff, L):
        #print(subset)


        password = ''.join(subset)
        print(password)

        file = open("generatedpasswords.txt","w")
        file.write(str(password) + '\n')

        passwordstried = passwordstried + 1
    if (L>lengthstartingvalue+1):
        break

endtime = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
elapsed = datetime.strptime(endtime, FMT) - datetime.strptime(starttime, FMT)
print ('Time elapsed:',elapsed)
print ('Passwords tried:',passwordstried)
file.close()

Answer 1

您遇到的问题是您在循环内重新打开相同的文件...

file = open("generatedpasswords.txt","w")
for L in range(lengthstartingvalue, len(stuff)+1):
    for subset in itertools.combinations_with_replacement(stuff, L):
        #print(subset)


        password = ''.join(subset)
        print(password)


        file.write(str(password) + '\n')




        passwordstried = passwordstried + 1
    if (L>lengthstartingvalue+1):
        break

这将一次又一次地重新打开同一个文件，并最终将最后一个密码写入文件中如果您想要附加当前密码并且不想丢失以前的数据，那么您可以在for循环中使用file = open("generatedpasswords.txt","a") ....

无法让新的线路在python中工作？

1 个答案: