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Author: ld1978

homework1-day1.py

@@ -0,0 +1,32 @@
+#!/usr/bin/env python
+# -*-conding:utf-8-**
+# __Author__:'liudong'
+#!/usr/bin/env python
+# -*-coding:utf-8-*-
+# __author__="Life"
+login_user = 'life'
+login_passwd = '7777'
+print('You have three times to login,otherwise your account will be locked!')
+for i in range(3):
+    username = input('Please input your username:')
+    password = input('Please input your password:')
+    lock_file = open('account_lock.txt', 'r')
+    lock_list = lock_file.readlines()  # 已经被锁定用户清单文件
+    for lock_line in lock_list:     #判断用户输入的名字是否已经锁定（在锁定的文件列表中）
+        lock_line = lock_line.strip('\n')
+        if username == lock_line:
+            print('Your account is locked!')
+            lock_file.close()
+            exit()
+    if username == login_user and password == login_passwd:
+        print('login successed!')
+        break
+    else:
+        print('Invalid username or password...')
+        print('this is the %d time(s)' % (i + 1))
+        continue
+if i >= 2:
+    print('Your account is locked! Please,contact adminstrator to unlock your account!')
+    lock_file = open('account_lock.txt', 'w')
+    lock_file.write(username + '\n')    #锁定用记名写入锁定文件
+lock_file.close()