Python 中的密码生成程序

Question

我生成了随机密码。现在我想将每个密码分配给用户列表中存在的每个/不同用户。但只有最后一个密码被分配给每个用户。代码如下。

import random

chars="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ123456!@#$%^&*()"
users=['A','B','C']


users_count= 0
for i in users: 
      users_count = users_count + 1
# print (str(users_count))



pass_len=int(input("Password length = "))
pass_count=users_count

for i in range(0,pass_count):
    password=""
    for i in range(0,pass_len):
        pass_chars= random.choice(chars)
        password=password+pass_chars 
    print("all pass are : " ,password)
 
for user in users:
    print(user," Password : ",password)

输出是这样的：

Password length = 5
all pass are :  As6iI
all pass are :  FhAIX
all pass are :  fjJBH
A  Password :  fjJBH
B  Password :  fjJBH
C  Password :  fjJBH

Answer 1

使用字典来存储对。

user_passwords = {}
for user in users: # For each user
    password = ""
    for i in range(0, pass_len): # Lets generate the password
        password = password + random.choice(chars) # Add a random character
    user_passwords[user] = password # assign the password to the user

for user in users:
    print(user," Password : ",user_passwords[user])

或更短的版本：

user_passwords = {}
for user in users:
    for i in range(0, pass_len):
        user_passwords[user] = user_passwords.get(user, "") + random.choice(chars)

for user in users:
    print(user," Password : ",user_passwords[user])

您的代码的问题：

password=""
for i in range(0,pass_len):
    pass_chars= random.choice(chars)
    password=password+pass_chars 
print("all pass are : " ,password) 
        #   <-- Missing assigning the password to the user

您正在生成随机密码，但没有将它们分配给用户。

但只有最后一个密码被分配给每个用户。代码是 下面。

这是因为您通过始终打印之前生成的最后一个密码来迭代用户：

for user in users:
    print(user," Password : ",password)

Answer 2

'password'是一个变量，一次只能有1个值，当你在循环中更改密码的值时，当循环结束时，只会保留最后一个值。

创建一个数组并在循环中将密码附加到其中，然后为每个用户循环调用该数组。