GithubHelp home page GithubHelp logo

python's People

Contributors

0xmario27 avatar bugmaker2 avatar dchaofei avatar gitbook-bot avatar ibenzhou avatar kaylazhou avatar luo-zi avatar walter201230 avatar wwivywwivy avatar

Stargazers

 avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar

Watchers

 avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar

python's Issues

错别字请更正

如果对自己的基础有点信息的童鞋,可以尝试通过国外的 Django 博客从搭建到部署系列教程 进行入门......
这里应该是信心吧?

i

Python

Python5/cycle有一个typo

”有时候,我们只想统计 1 到 100 之间的奇数和,那么也就是说当 count 是偶数,也就是双数的时候,我们需要跳出当次的循环,不想加,这时候可以用到 break“

最后的break应该是continue

谢谢整理这些资料,帮助很大

博客打不开

无法访问此网站找不到 www.cloudcrossing.xyz 的服务器 IP 地址。
尝试运行 Windows 网络诊断。
DNS_PROBE_FINISHED_NXDOMAIN

2020年7月22日22:54:58

python 迭代器 -元组

3、tuple(元祖) 对象创建迭代器

tuple1 = ( 1,2,3,4 )
iter3 = iter ( tuple1 )

next() 函数遍历迭代器

while True :
try :
print ( next ( iter3 ) )
except StopIteration :
break

这个代码的实际运行效果是:1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1。请看看是不是循环条件有问题。谢谢

元组

元组里有个遍历的代码,是不是笔误呢
`

for x in (1, 2, 3): print x,

`

文档字符串

官方文档对文档字符串的描述和示例对其要求是第二行空一行,主注释和辅注释隔离开
例如官方示例:

def my_function():
... """Do nothing, but document it.
...
... No, really, it doesn't do anything.
... """
... pass
...
print(my_function.doc)
Do nothing, but document it.

No, really, it doesn't do anything.

匿名函数这章节是否可以新增两个demo,以便更好理解

https://www.readwithu.com/Article/PythonBasis/python6/5.html

这主要在于 lambda 表达式中的 num2 是一个自由变量,在运行时绑定值,而不是定义时就绑定,这跟函数的默认值参数定义是不同的。所以建议还是遇到这种情况还是使用第一种解法。

这里的表达一开始不是很理解。自己尝试了下面的例子,加深理解。

书中例子为如下:

# -*- coding: UTF-8 -*-

num2 = 100
sum1 = lambda num1 : num1 + num2 ;

num2 = 10000
sum2 = lambda num1 : num1 + num2 ;

print( sum1( 1 ) )
print( sum2( 1 ) )

输出为:

10001
10001

其实可以理解为在调用sum1()和sum2()的时候,num2在第二次赋值的时候已经变成了 10000,所以输出为10001。就是理解为在运行时绑定值,而不是定义是绑定。应该是看在函数调用的时候,num2的值为什么。

配合以下的demo就比较清晰的理解了。

# -*- coding: UTF-8 -*-

num2 = 100
sum1 = lambda num1 : num1 + num2 ;

print( sum1( 1 ) )

num2 = 10000
sum2 = lambda num1 : num1 + num2 ;

print( sum1( 1 ) )

输出为:

101
10001

这里调用sum1()的时候num2 还未被赋值,能更好理解。新手,如果有理解偏差,多多包涵。

编码规范换行

print 'Hello, '
'%s %s!' %
('Harry', 'Potter')
我是新手才学 这里是不是忘记给print方法加括号了,我加了括号没问题,不加报错呢

୧(๑•̀◡•́๑)૭

多态那节,最好用父类引用指向子类对象举例

多态:父类引用指向子类对象,运行时根据其真实形态调用其相应方法

if __name__ == '__main__':
    user = UserVip('两点水')
    printUserInfo(user)
    user = UserGeneral('水水水')
    printUserInfo(user)
结果:
Hello ! 尊敬的Vip用户:两点水
Hello ! 尊敬的用户:水水水

只有前五分钟可以连通,后面就无法连通了

hi 首先谢谢教程!

我在按教程安装完毕之后,前五分钟可以使用,但是五分钟之后就无法再连通了(无法打开网页,有的时候提示error 500 Internal Privoxy Error)
在这种情况下,我能ping通google.com,scholar.google.com会丢包,youtube.com无法ping通,且这三个网站都打不开。
请问这可能是什么原因?
另,我曾经试过用阿里云的服务器搭建,也是同样的五分钟之后就无法联通的。这样看来应该是我电脑的问题?

咨询

博主有没有python交流群啊,最近有些问题想讨论讨论。。。。

while循环

"也就是双数的时候,我们需要跳出当次的循环,不想加,这时候可以用到 break",这里笔误了,应该是continue。

Recommend Projects

  • React photo React

    A declarative, efficient, and flexible JavaScript library for building user interfaces.

  • Vue.js photo Vue.js

    🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.

  • Typescript photo Typescript

    TypeScript is a superset of JavaScript that compiles to clean JavaScript output.

  • TensorFlow photo TensorFlow

    An Open Source Machine Learning Framework for Everyone

  • Django photo Django

    The Web framework for perfectionists with deadlines.

  • D3 photo D3

    Bring data to life with SVG, Canvas and HTML. 📊📈🎉

Recommend Topics

  • javascript

    JavaScript (JS) is a lightweight interpreted programming language with first-class functions.

  • web

    Some thing interesting about web. New door for the world.

  • server

    A server is a program made to process requests and deliver data to clients.

  • Machine learning

    Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.

  • Game

    Some thing interesting about game, make everyone happy.

Recommend Org

  • Facebook photo Facebook

    We are working to build community through open source technology. NB: members must have two-factor auth.

  • Microsoft photo Microsoft

    Open source projects and samples from Microsoft.

  • Google photo Google

    Google ❤️ Open Source for everyone.

  • D3 photo D3

    Data-Driven Documents codes.