要求
用户输入用户名密码
登陆成功显示欢迎信息
输错三次后锁定
流程图
代码
#coding:UTF-8
username_password_file = 'user_passwd.txt' #存储用户名密码
f = file(username_password_file)
username_password = {}
for line in f.readlines():
line = line.split()
username_password[line[0]] = line[1] #使用字典比使用两个数组更清晰
f.close()
while True:
lock_file = 'lock.txt' #存储被锁定用户
f = file(lock_file)
lock = []
for line in f.readlines():
line = line.strip()
lock.append(line)
f.close()
user_name = raw_input('hello,welcome to here,please input your name:').strip()
if user_name in username_password.keys():
if user_name in lock:
print 'you are locked'
else:
count = 0 #输入密码的计数器
while True:
iden = 0 #作跳出循环的标志位
password = raw_input('Please input your password:').strip()
if count >= 3:
f = file(lock_file,'a')
f.write(user_name)
f.write('\n') #加换行符
f.close()
print 'you input three times wrong,you are locked'
break
else:
for k,v in username_password.items():
if user_name == k and password == v:
print 'hello,welcome to login in'
iden = 1
break
else:
count = count + 1
print 'The password is wrong,please input again'
if iden == 1:
break
else:
print 'you input a wrong username,please input again'
