python simple simulation blog park system

# With a code to simulate blog park system 
# 
# Project Analysis: 
# 1. First, the program starts, displays the following contents for users to choose: 
# 
# 1. Go to 
# 2. Please register 
# 3. Go to page article 
# 4. Enter comments page 
# 5 into the diary page 
# 6. Go to collection page 
# 7. cancellation account 
# 8. quit the whole program 
# 2. We must realize the function: 
# 
# 1. Registration functional requirements: 
. # A user name and password to be recorded in the file. 
. # B User Requirements: You can not have special characters and ensure that the user name is unique. 
. # C password requirements: a length between 6 to 14 characters. 
# 
# 2. Log functional requirements: 
. # A user enters a username and password login authentication. 
. # B after a successful login can be accessed 3--7 options, visit 3:00 If you do not log on or log unsuccessful --7 option does not allow access, the user is prompted to log in! 
# C login has not yet succeeded more than three times, then exit. the entire program. 
# 
# 3. Go to the article page Requirements: 
# prompt welcome xx enter the article page. (xx is the user name currently logged in) 
# 
# 4. Enter comments page Requirements: 
# 
# prompt Welcome page xx Enter comments 
# 
# 5. Requirements to enter the diary page:
Tip # xx welcomed into the diary page. 
# 
# 6. Go to page collection requirements: 
# prompt Welcome page xx into the collection. 
# 
# 7. cancellation account requirements: 
# not quit the whole program, but the state has logged into the unregistered status (need to login again when the visit from 3 to 7 options) 
# 
# 8. quit the whole program requirements: 
# is end of the process 
Import hashlib 

login_dic = { 
    'Status': False 
} 

S1 = "" # global variable 
DEF warpper (FUNC): 
    DEF Inner (* args, ** kwargs): 
        IF login_dic [ 'Status'] == True: 
            RET FUNC = (* args, ** kwargs) 
            return RET 
        the else: 

            the Login (* args, ** kwargs) 
            FUNC (* args, ** kwargs) 

    return Inner 

DEF yonghuming (): # username validation function 
    while True:
        the INPUT = username ( "username:") 
        for i in username: 
            IF not i.isalnum (): 
                Print ( "No") 
                BREAK 
        the else: 
            return username 

DEF mima (): # password verification function 
    the while True: 
        pwd = the INPUT ( " pwd: ") 
        for I in pwd: 
            IF. 6 <= len (pwd) <= 14: 
                Print (" OK ") 
                return pwd 
        the else: 
            Print (" re-enter the password ") 


DEF zhuce (* args, ** kwargs): 
    s2 = yonghuming () # username call authentication 
    s3 = mima () # call password authentication 
    md5 = hashlib.md5 () # initial encryption template 
    md5.update (s3.encode ( 'utf-8 '))
    m = md5.hexdigest()
    with open('flag', 'a+', encoding="utf-8") as f:
        f.seek(0)
        f.write(f"{s2}:{m}\n")
        print("注册成功")

def login(*args, **kwargs):
    for i in range(3):
        username1 = input("username:")
        pwd1 = input("pwd:")
        md5 = hashlib.md5()  # 初始化加密模板
        md5.update(pwd1.encode('utf-8'))
        m1 = md5.hexdigest()
        with open('flag', 'r', encoding='utf-8') as f1:
            for i in f1:
                username, pwd = i.strip().split(":")
                if username == username1 and m1 == pwd:
                    login_dic['status'] = True 
                    Print ( "Login successful")
                    S1 Global 
                    S1 = # username modify global variables 
                    return S1 
            the else: 
                Print ( "username password error") 
    the else: 
        Print ( "slightly wrong 3 times !!") 

@wrapper 
DEF blog_wz (S1): 
    IF login_dic [ 'Status' ]: 
        Print (f "Welcome {s1} enter the article page") 
@wrapper 
DEF blog_pl (s1): 
    IF login_dic [ 'Status']: 
        Print (f "Welcome {s1} enter comments page") 


@wrapper 
DEF blog_rz (s1 ): 
    IF login_dic [ 'Status']: 
        Print (F "Welcome {s1} log into the page") 


@wrapper 
DEF blog_sc (S1): 
    IF login_dic [ 'Status']: 
        Print (F "to enter collection {s1} Welcome page ")


@wrapper
def blog_zx(s1):
    IF login_dic [ 'Status']: 
        login_dic [ 'Status'] = False 
        Print ( "write-off account") 


msg = "" " 
1, register 
2, log 
3, enter the article page 
4, enter comments page 
5, to the Log page 
6 enter the collection page 
7, close the account 
8. quit 
"" " 
DIC1 = { 
    '. 1': zhuce, 
    '2': Login, 
    '. 3': blog_wz, 
    '. 4': blog_pl, 
    '. 5': blog_rz, 
    '. 6' : blog_sc, 
    '. 7': blog_zx, 
    '. 8': Exit 
} 
DEF RUN (): 
    the while True: 
        , my_str = INPUT (MSG) 
        IF, my_str in DIC1: 
            IF, my_str == '. 8':
                return
            dic1[my_str](s1)
        else:
            print ( "input error number") 



IF the __name__ == '__main__': 
    RUN ()