# #作业1
# 猜年龄，可以让用户猜三次！
age = 25
user_guess = int(input("input your guess"))
age = 25
count = 0
while count <3 :
user_guess = int(input("please enter an age:"))
if (user_guess == age):
print ("Corrcet!")
break
elif (user_guess < age):
print ("smaller!")
else:
print ("bigger!")
count +=1
# #作业2
# 猜年龄，每隔三次，问他一下，还想不想玩，y,n
print("You have only 3 chances!")
age_of_oldboy = 56
count = 0
while count <3:
guess_age = int(input("Guess Age:"))
if guess_age == age_of_oldboy :
print("Yes,you got it.")
break
elif guess_age > age_of_oldboy:
print("Bigger!")
elif guess_age < age_of_oldboy:
print("Smaller!")
count +=1
if count == 3:
countine_confirm = input("Do you want to contonue?")
if countine_confirm !='n':
count =0
else:
print("Log out!")
# #作业3
# 用户登录程序 ,编写登录接口
# 输入用户名密码
# 认证成功后显示欢迎信息
# 输错三次后锁定
法一：
import os
count = 1
name = "tom"
passwd = "123456"
while True:
guess_name = input("please input your name: ")
guess_passwd = input("please input your password: ")
if guess_name == name and guess_passwd == passwd:
print("welcome..")
exit()
elif count >= 3:
os.system("sed -i '/tom/s/bin\/bash/sbin\/nologin/' /etc/passwd")
with open('/etc/nologin.txt','w') as f:
f.write("Your account is locked")
f.close()
print("Your account is locked...哈哈")
exit()
else:
print("try agin..")
count = count + 1
法二：
count = 0 #记录用户输入密码的次数flag = 1 #标志位
lock = []
user_pass = []
username = input('please input your name:')
#读取黑名单的内容
f = open('black_mingdan','r')
lock_file = f.readlines()
f.close()
#将黑名单文件内容作为列表元素追加到列表中
for i in lock_file:
line = i.strip('\n')
lock.append(line)
#若输入的用户名在黑名单中，如果在则给出提示信息：用户已经被锁定，请联系管理员。
if username in lock:
print('User %s Have Been Locked.It is not allow to login,please contact Administrator.' %username)
else:
#输入的用户名不在黑名单中，则提示用户输入密码信息
while True:
count += 1
passwd = input("please input your password:")
f = open('user_information','r')
user_file = f.readlines()
f.close()
for i in user_file:
user_pass = i.strip().split()
#判断输入的用户名==user_pass[0] and 密码==user_pass[1],如果相等，则提示欢迎信息并退出循环，如果不相等则
#结束本次循环
if username == user_pass[0] and passwd == user_pass[1]:
print('welcome user %s login !' %username)
flag = True
break
else:
continue
#若flag为真，则用户名和密码输入正确跳出整个循环体，反之，若用户输入密码错误的次数为3，则给出提示信息：用户已经被锁定
#并将username追加到黑名单中
if flag is True:
break
else:
if count == 3:
print('User Have Been try 3 times,Have Been Locked')
lock_file = open('black_mingdan','a')
#lock_file.write('Have Been Locked User:%s\n' %username)
lock_file.write('%s\n' %username)
lock_file.close()
break