Python 基础01

猜年龄 ， 可以让用户最多猜三次！

---

#!/bin/python3
# -*- coding:utf-8 -*-
age = 56
times = 3
guess = 0
while guess != 3:
    user_guess = int(input("input your guess age:"))
    if user_guess > age :
        print("try smaller!")
        guess += 1
    elif user_guess < age :
        print("try bigger!")
        guess += 1
    else:
        print("you got it!")
        break
if guess == 3:
	print("only can guess three times!")

猜年龄 ，每隔3次，问他一下，还想不想继续玩，y,n

---

#!/bin/python3
# -*- coding:utf-8 -*-
age = 56
while True:
	guess = 0
	while guess != 3:
	    user_guess = int(input("input your guess age:"))
	    if user_guess > age :
	        print("try smaller!")
	        guess += 1
	    elif user_guess < age :
	        print("try bigger!")
	        guess += 1
	    else:
	        print("you got it!")
	        break
	if guess == 3:
		print("only can guess three times!")
	flag = input("continue play?y/n:")
	if flag == 'n' or flag == 'N':
		break

登陆接口

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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

#!/bin/python3
# -*- coding:utf-8 -*-
#调用
import getpass,os
def read_users(username):
	flag = 1
	user_list = open('userlockd.txt', 'r')
	while True:
		line=user_list.readline()
		if len(line.strip()) == 0:
			break
		if line.strip() == username:
			flag = 0
			break
	return flag
def lock_user(username):
	user_list = open('userlockd.txt','w+')
	user_list.writelines(username)

times = 0
while True:
	username = input("username:")
	password = getpass.getpass("password:")
	if read_users(username):
		if username == "sbegon" and password == "123":
			print("welcome %s" %username)
			break
		elif times == 2:
			print("wrong username or password!this account has been locked!")
			lock_user(username)
			break
		else:
			print("wrong username or password!")
			times += 1
	else:
		print("this account has been locked")
		break