课后作业14讲：密码安全性检查代码

MaxFireGun

1. check_mark='~!@#$%^&*()_=-/,.?<>;:[]{}|\\'\
   
2. 
   
3. # print(check_mark)
   
4. 
   
5. while True:
   
6. 
   
7.     code = input('Please input ur code here:')
   
8.    
   
9.     code_len = len(code)
   
10.    
    
11.     Flag = True
    
12.    
    
13.     f_check_list=[0,0,0] #[alpha, number, mark]
    
14.    
    
15.     for i in code:
    
16.         if i.isalpha():
    
17.             f_check_list[0] += 1
    
18.         elif i.isdigit():
    
19.             f_check_list[1] += 1
    
20.         elif i in check_mark:
    
21.             f_check_list[2] += 1
    
22.         else:
    
23.             print('Ur code is not standard. Some symbols are not allowed! Please check the code rules as follow: ****')
    
24.             Flag = False
    
25.             break  
    
26. 
    
27. ######Check whether there is symbol that is not included in the check_mark######   
    
28.     if Flag == False:
    
29.         continue   
    
30.     else:
    
31.         pass
    
32. ########################################################################
    
33. 
    
34. 
    
35.     #print(f_check_list)
    
36.    
    
37.     if code_len <= 8 and ((f_check_list[0] > 0 or f_check_list[1] > 0) and f_check_list[2] == 0):
    
38.         print('Ur code is in low security level')
    
39.         break
    
40.    
    
41.     elif code_len > 8 and int(bool(f_check_list[0])) + int(bool(f_check_list[1])) + int(bool(f_check_list[2])) == 2:
    
42.         print('Ur code is in medium security level')
    
43.         break
    
44.         
    
45.     elif code_len >= 16 and code[0].isalpha() and (f_check_list[0] > 0 and f_check_list[1] > 0 and f_check_list[2] > 0):
    
46.         print('Ur code is in high security level')
    
47.         break
    
48.         
    
49.     else:
    
50.         print('Ur code is not standard. Please check the code rules as follow: *********')

复制代码

课后作业说明：
1. 对于满足题目中所给要求的密码，会给出相应的密码安全等级，然后跳出循环。
2.对于不符号不在列表里的，会及时跳出for和while循环，节约计算时间。同时给出'Ur code is not standard. Some symbols are not allowed! Please check the code rules as follow: ****'的提示，并让客户继续输入密码。
2. 对于不满足所有三种要求的密码，会给出'Ur code is not standard, Please check the code rules as follow: balablabla'的提示，并继续让客户输入密码。
3. ‘#’后面的是在测试的过程中用来打印相应的数据，查看程序跑得是否正确，可以忽略。

Beer! Cheers!!