Python 官方文档:入门教程 => 点击学习
1.使用while循环输入1 2 3 4 5 6 8 9 10#!/usr/bin/env python #-*- coding:utf-8 -*- a = 0 while True: a += 1 if a == 7:
1.使用while循环输入1 2 3 4 5 6 8 9 10
#!/usr/bin/env python
#-*- coding:utf-8 -*-
a = 0
while True:
a += 1
if a == 7:
continue
print(a)
if a == 10:
break
2.求1-100的所有数的和
#!/usr/bin/env Python
#-*- coding:utf-8 -*-
sum = 0
start = 1
while True:
sum = sum + start
if start == 100:
break
start += 1
print(sum)
3.输出1-100内的所有奇数
#!/usr/bin/env python
#-*- coding:utf-8 -*-
start = 1
while True:
if start % 2 == 1:
print(start)
start += 1
if start > 100:
break
4.输出1-100内的所有偶数
#!/usr/bin/env python
#-*- coding:utf-8 -*-
start = 1
while True:
if start % 2 == 0:
print(start)
start += 1
if start > 100:
break
5.求1-2+3-4+5..99的所有数的和
#!/usr/bin/env python
#-*- coding:utf-8 -*-
start = 1
sum = 0
while start < 100:
if start % 2 == 1:
sum = sum + start
else:
sum = sum - start
start += 1
print(sum)
显示等式验证方法:
#!/usr/bin/env python
#-*- coding:utf-8 -*-
s = ""
start = 1
sum = 0
while start < 100:
if start % 2 == 1:
if start == 1:
s = str(start)
else:
s = s + "+" + str(start)
sum = sum + start
else:
s = s + "-" + str(start)
sum = sum - start
start += 1
print(s)
print(sum
)
6.用户登陆(三次机会重试)
i = 1
while i < 4:
user = raw_input("UserName:")
pwd = raw_input("PassWord:")
if user == "alex" and pwd == "123":
print("true")
break
else:
print("flase")
i += 1
--结束END--
本文标题: Python入门练习题(适合Python
本文链接: https://www.lsjlt.com/news/189971.html(转载时请注明来源链接)
有问题或投稿请发送至: 邮箱/279061341@qq.com QQ/279061341
下载Word文档到电脑,方便收藏和打印~
2024-03-01
2024-03-01
2024-03-01
2024-02-29
2024-02-29
2024-02-29
2024-02-29
2024-02-29
2024-02-29
2024-02-29
回答
回答
回答
回答
回答
回答
回答
回答
回答
回答
0