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python 作业一4-10
作业一:为程序加上测量运行时间的装饰器
1 import time 2 def timer(next): 3 def wrapper(*args,**kwargs): 4 start_time = time.time() 5 next(*args,**kwargs) 6 stop_time = time.time() 7 print("run time in %s "%(stop_time - start_time)) 8 9 return wrapper 10 @timer 11 def index(): 12 time.sleep(1) 13 print("welcome ") 14 15 index()
作业二:利用装饰器和读写文件的方式控制用户登录
1 def auth_type(auth_type): 2 def auth(next): 3 def wrapper(*args,**kwargs): 4 if auth_type == ‘file‘: 5 lock = {} 6 flag =True 7 with open("username.txt") as f_user, open("locked.txt", "a+") as f_lock, open("f_logged", "a+") as f_logged: 8 while flag: 9 lock_count = 0 10 f_lock.seek(0) 11 f_user.seek(0) 12 f_logged.seek(0) 13 user_name = input("请输入你的帐号:") 14 for logged_in in f_logged: 15 if user_name ==logged_in.strip(): 16 print("登陆成功!") 17 return next(*args,**kwargs) 18 passwd = input("请输入你的密码:") 19 for user_lock in f_lock: 20 if user_lock.strip() == user_name: 21 print("此帐号已被锁定!") 22 lock_count = 1 23 break 24 for user in f_user: 25 user_f, passwd_f = user.strip().split("----") 26 if user_f == user_name and lock_count == 0: 27 if passwd_f == passwd: 28 print("登陆成功!") 29 f_logged.write(user_name+‘\n‘) 30 return next(*args,**kwargs) 31 else: 32 if user_name in lock: 33 lock[user_name] += 1 34 else: 35 lock[user_name] = 1 36 break 37 print("登录失败!") 38 if user_name in lock and lock[user_name] >= 3: 39 print("错误次数过多,帐号锁定!") 40 f_lock.write(user_name + ‘\n‘) 41 lock.pop(user_name) 42 print("登录失败! ") 43 elif auth_type == "sql": print("峰哥还没教") 44 return wrapper 45 return auth 46 @auth_type(auth_type="file") 47 def index(): 48 print("欢迎") 49 50 index()
python 作业一4-10
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