Question

我是python的新手，实际上非常新。我有一个作业，我要检查文本文件中的密码列表，通过一个函数运行它，以确保每个密码都符合必要的条件，然后将结果打印在新的文本文件中。我没有使用密码功能，但为了我的一生，我不知道如何将结果打印在新的文本文件上。希望有人可以帮助我朝正确的方向

infile = open("passwdin-1.txt","r")
psswd = infile.readline()
outfile = open("passwdout.txt","w")


for pswd in infile:
    resultpsswd = checkPassw0rd(psswd) 
outfile.write(resultpsswd)

infile.close()
outfile.close()

def checkPassw0rd(psswd):

    countLength = len(psswd)
    countUC = 0
    countLC = 0
    countDigit = 0
    specialCH = 0 
    resultpsswd = psswd

    for ch in psswd:
        if ch.isupper():
            countUC += 1
        elif ch.islower():
            countLC += 1
        elif ch.isdigit():
            countDigit += 1
        elif ch in "!$%":
            specialCH = 0


    if countLength >= 6 and countUC > 0 and countLC >= 2 and countDigit > 0 and specialCH > 0:
        return True, resultpsswd "Password is valid and accepted"
    else:
        resultpsswd == "Password is invalid and not accepted"
        if countLength < 6:
            resultpsswd == resultpsswd + "\n Password has to be at least 6 characters long. "
        if countUC == 0:
            resultpsswd == resultpsswd + "\n Password has to have at least one upper case character. "
        if countLC == 0:
            resultpsswd == resultpsswd + "\n Password has to have at least one lower case character. "
        if countDigit == 0:
            resultpsswd == resultpsswd + "\n Password has to have at least one digit. "
        if specialCH == 0:
            resultpsswd == resultpsswd + "n\ Password has to have at least one of the special charaters '!$%'. "

        return False, resultpsswd

Answer 1

您的代码中有一个错字，您传递给check pwd函数的参数存在缩进问题，即使它确实起作用，您也只会将最后一个密码写入文件

将您的代码更改为类似于以下内容的代码应该可以解决

with open("passwdout.txt","w") as outfile:
    [outfile.write(checkpasw0rd(pswd)) for pswd in infile]

with statement确保您不再需要关闭输出文件，这是自动处理的

使用上面的代码替换整个forloop

Answer 2

让我尝试总结一下使示例工作可行的方法。

首先，使用完文件后，应关闭使用的文件
在一段代码中 for pswd in infile: resultpsswd = checkPassw0rd(psswd) 您应该将pswd传递给checkPassw0rd函数
您的checkPassw0rd函数的输出是一个元组（，resultpsswd），因此您只应考虑该元组的第二项：

okNok, resultpsswd = checkPassw0rd(psswd) outfile.write(resultpsswd)
您应该缩进outfile.write(resultpsswd)行。

最后类似的事情应该起作用：

infile = open("passwdin-1.txt","r")
psswd = infile.readline()
infile.close()

#outfile = open("passwdout.txt","w") --> Better to use the with statement

with open("passwdout.txt", "w") as outfile:
    for pswd in infile:
        okNok, resultpsswd = checkPassw0rd(pswd) 
        outfile.write(resultpsswd)

#No need to explicitly close the file, the with statement will do it

我希望这会有所帮助。

检查文本文件中的密码并将结果打印在单独的文本文件中

2 个答案: