起因

周末登录一个网站要求修改密码，至少16位大小写，特殊字符之类的。我的常用密码平时不超过8位，用两次加起来也没能修改成功，就想通过软件生成密码。

思路

1. 输入网址、用户名、生成密码的位数
2. 生成密码确保包含大小写字符、特殊字符、数字
3. 网址、用户名、密码、生成日期保存到EXCEL中
4. 密码自动复制到粘贴板
5. 借助和彩云的同步盘功能，可以代替Lastpass密码管理器的功能。

代码

import sys
sys.path.append(r'E:\python\venv\Lib\site-packages') # 代码是用pycharm写的，复制到桌面后需要添加环境。
import string
import random
import pyperclip
from  openpyxl import load_workbook
import datetime
def creatpassword(wangzhi,login,longPassword):
    global passWord
    str_lowercase = string.ascii_lowercase
    str_uppercase = string.ascii_uppercase
    str_digits = string.digits
    str_punc = string.punctuation
    str_all = str_lowercase + str_uppercase + str_digits + str_punc
    List = []
    for i in str_all:
        List.append(i)
    random.shuffle(List)
    count1 = count2 = count3 = count4 = 0

    while count1 == 0 or count2 == 0 or count3 == 0 or count4 == 0:
        passWord = random.sample(List, longPassword)
        count1 = 0
        count2 = 0
        count3 = 0
        count4 = 0
        for m in passWord:
            if m in str_uppercase:
                count1 = 1
                break
        for n in passWord:
            if n in str_lowercase:
                count2 = 1
                break
        for x in passWord:
            if x in str_punc:
                count3 = 1
                break
        for y in passWord:
            if y in str_digits:
                count4 = 1
                break
    return ''.join(passWord)
def writexlsx(shuju):
    wb = load_workbook(r'E:\python\密码生成\password.xlsx')
    ws = wb.active
    ws.append(shuju)
    wb.save('E:\python\密码生成\password.xlsx')
    wb.close()
if __name__ == '__main__':
    wangzhi = input('请输入网址：')
    login = input('请输入用户名：')
    longPassword = int(input('请输入密码长度：'))
    password = creatpassword(wangzhi, login, longPassword)
    shuju = [wangzhi,login,longPassword,password,datetime.date.today()]
    writexlsx(shuju)
    pyperclip.copy(password)

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