python 3.5开发之旅 day1

时间:2021-05-04 00:32:16
#! /usr/bin/env python
#
-*- coding UTF-8 -*-
import getpass
a1
= input("inputusername:")
a2
= getpass.getpass("inputpassword:")
print(a1)
print(a2)

 

#! /usr/bin/env python
#
-*- coding:utf-8 -*-

#输出1-100内的所有奇数


a
= 1
while a <= 100:
if a%2 == 1:
print(a)
a
+= 1

#! /usr/bin/env python
#
-*- coding:utf-8 -*-
#
输出1-100内的所有偶数
a = 1
while a <= 100:
if a%2 == 0:
print(a)
a
+= 1
#! /usr/bin/env python
#
-*- coding:utf-8 -*-
#
求 1-2+3-4...99所有数的和
a = 1
sum
= 0
while a <= 99:
if a%2 == 1:
sum
= sum + a
a
+= 1
else:
sum
= sum -a
a
+= 1
print(sum)
#! /usr/bin/env python
#
-*- conding:utf-8 -*-
import time
t1
= 1
while t1 < 4:
username
= input('please input your username:')
password
= input('password:')
if username == 'zhangsan' and password == 'yes':
print('congratulations')
break
elif t1 <= 2:
print('error')
t1
+= 1
continue
else:
print('forbbiden')
time.sleep(
10)
continue