python - 在 python 中，newStr +":"+otherStr 变为 newStr +"\n"+":"+otherStr

Question

我希望标题不会太令人困惑，但稍后您就会明白我的意思。与此同时，一些背景故事 - 我正在开发一个生成随机用户名和密码的函数，并将它们作为 username:password 写入文本文件中，供另一个收集用户名的程序使用:密码行为:

string = line.split(":")
username = string[0]
pwd = string[1]

为什么这很重要？好吧，当我运行我的函数时:

代码:

# To generate users and passwords for the password file:
"""
Usage: count-- how many accounts to generate
file-- where to dump the accounts
method-- dict is where it loops through words 
and chooses random ones as users and passwords,
and brute (not implemented yet) is where it chooses
random characters and strings them together as users
and passwords.
users-- if you want any filled in users, put them in here.
passes-- if you want any filled in passes, put them in here.
"""
def genAccts(count, file, method="dict", users=[], passes=[]):
    try:
        f = open(file, "w")
        if method == "dict":
            dictionary = "Dictionary.txt"#input("[*] Dictionary file: ")
            d = open(dictionary, "r")
            words = d.readlines()
            d.close()
            accts = []
            for b in range(0, count):
                global user
                global pwd
                user = random.choice(words)
                pwd = random.choice(words)
                if b < len(users)-1:
                    user = users[b]
                if b < len(passes)-1:
                    pwd = passes[b]
                acct = [user, pwd]
                accts.append(acct)
            print("[+] Successfully generated",count,"accounts")
            for acct in accts:
                combined = acct[0]+":"+acct[1]
                print(combined)
                f.write(combined)
            f.close()
            print("[+] Successfully wrote",count,"accounts in",file+"!")
    except Exception as error:
        return str(error)

genAccts(50, "brute.txt")

在我的密码文件 brute.txt 中，我得到如下输出

quainter
:slightest
litany
:purples
reciprocal
:already
delicate
:four

所以我想知道为什么在用户名后面添加 \n ？

Answer 1

您可以通过替换来解决此问题:

words = d.readlines()

与:

words = [x.strip() for x in d.readlines()]