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L = [x * x for x in range(10)] L [0, 1, 4, 9, 16, 25, 36, 49, 64, 81] g = (x * x for x in range(10) g generator object genexpr at 0x7fecaa22fc60. Next(g) 0 next(g) 1 next(g) 4 next(g) 9 next(g) 16 next(g) 25 next(g) 36 next(g) 49 next(g) 64 next(g) 81 next(g) Traceback (most recent call last): File " stdin ", line 1, in module StopIteration. G = (x * x for x in range(10) for n in g: . print(n) . 0 1 4 9 16 25 36 49 64 81. Fib(6) generator object fib at 0x104feaaa0. However the result was this:. Traceback...

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python教程 | pythonjiaocheng.github.io Reviews

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L = [x * x for x in range(10)] L [0, 1, 4, 9, 16, 25, 36, 49, 64, 81] g = (x * x for x in range(10) g generator object genexpr at 0x7fecaa22fc60. Next(g) 0 next(g) 1 next(g) 4 next(g) 9 next(g) 16 next(g) 25 next(g) 36 next(g) 49 next(g) 64 next(g) 81 next(g) Traceback (most recent call last): File stdin , line 1, in module StopIteration. G = (x * x for x in range(10) for n in g: . print(n) . 0 1 4 9 16 25 36 49 64 81. Fib(6) generator object fib at 0x104feaaa0. However the result was this:. Traceback...

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1 python教程

2 生成器函数被调用之后不会执行函数体而是返回生成器，每次调用

3 next 生成器对象

4 才会执行函数体

5 通过列表生成式，我们可以直接创建一个列表

6 但是，受到内存限制，列表容量肯定是有限的

7 在python中，这种一边循环一边计算的机制，称为生成器 generator

8 要创建一个generator，有很多种方法

9 第一种方法很简单，只要把一个列表生成式的

10 就创建了一个generator

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python教程,生成器函数被调用之后不会执行函数体而是返回生成器，每次调用,next 生成器对象,才会执行函数体,通过列表生成式，我们可以直接创建一个列表,但是，受到内存限制，列表容量肯定是有限的,在python中，这种一边循环一边计算的机制，称为生成器 generator,要创建一个generator，有很多种方法,第一种方法很简单，只要把一个列表生成式的,就创建了一个generator,的区别仅在于最外层的,list,generator,我们可以直接打印出,next,stopiteration

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python教程 | pythonjiaocheng.github.io Reviews

https://pythonjiaocheng.github.io

L = [x * x for x in range(10)] L [0, 1, 4, 9, 16, 25, 36, 49, 64, 81] g = (x * x for x in range(10) g generator object genexpr at 0x7fecaa22fc60. Next(g) 0 next(g) 1 next(g) 4 next(g) 9 next(g) 16 next(g) 25 next(g) 36 next(g) 49 next(g) 64 next(g) 81 next(g) Traceback (most recent call last): File " stdin ", line 1, in module StopIteration. G = (x * x for x in range(10) for n in g: . print(n) . 0 1 4 9 16 25 36 49 64 81. Fib(6) generator object fib at 0x104feaaa0. However the result was this:. Traceback...

INTERNAL PAGES

pythonjiaocheng.github.io

1

What exactly are Python's iterator, iterable, and iteration protocols?

http://pythonjiaocheng.github.io//2015/12/23/what-exactly-are-python's-iterator,-iterable,-and-iteration-protocols

What exactly are Python's iterator, iterable, and iteration protocols? Iteration is a general term for taking each item of something, one after another. Any time you use a loop, explicit or implicit, to go over a group of items, that is iteration. Is an object that has an. Method which returns an. Or which defines a. Method that can take sequential indexes starting from zero (and raises an. When the indexes are no longer valid). So an. Is an object that you can get an. Is an object with a.

2

分类

http://pythonjiaocheng.github.io//categories.html

Dive into python3 2. Confused with python lists: are they or are they not iterators. If range() is a generator in Python 3.3, why can I not call next() on a range. What exactly are Python's iterator, iterable, and iteration protocols? Python iterator, iterable有什么区别. How to make class iterable? Python 2.7 3.1 新特性字典推导式 Dictionary comprehensions. Python 2.7教程第一个Python程序. Python 2.7教程导语. Python 2.7教程 Python解释器. Python 2.7教程 Python简介. Dive Into Python3 chapter 7.Classes and Iterators.

3

python 使用list和tuple

http://pythonjiaocheng.github.io//2015/12/20/python-使用list和tuple

Classmates = ['Michael', 'Bob', 'Tracy'] classmates ['Michael', 'Bob', 'Tracy']. Classmates[0] 'Michael' classmates[1] 'Bob' classmates[2] 'Tracy' classmates[3] Traceback (most recent call last): File " stdin ", line 1, in module IndexError: list index out of range. Classmates[-2] 'Bob' classmates[-3] 'Michael' classmates[-4] Traceback (most recent call last): File " stdin ", line 1, in module IndexError: list index out of range. Classmates.append('Adam') classmates ['Michael', 'Bob', 'Tracy', 'Adam'].

4

文章

http://pythonjiaocheng.github.io//archive.html

December 25, 2015. Raquo; python 生成器. December 25, 2015. Raquo; python 模块. December 25, 2015. Raquo; Confused with python lists: are they or are they not iterators. December 24, 2015. Raquo; python Generators. December 24, 2015. Raquo; If range() is a generator in Python 3.3, why can I not call next() on a range. December 23, 2015. Raquo; What exactly are Python's iterator, iterable, and iteration protocols? December 23, 2015. Raquo; Python iterator, iterable有什么区别. December 23, 2015. December 21, 2015.

5

If range() is a generator in Python 3.3, why can I not call next() on a range

http://pythonjiaocheng.github.io//2015/12/24/if-range()-is-a-generator-in-python-3.3,-why-can-i-not-call-next()-on-a-range

If range() is a generator in Python 3.3, why can I not call next() on a range. Iterables are objects that. Can be used on to obtain an iterator. Iterators are objects that can be iterated through using. Generators is a category of iterators (generator functions and generator expressions). Is a class of immutable iterable objects. Their iteration behavior can be compared to lists: you can’t call. Directly on them; you have to get an iterator by using. Is not a generator. Attributes (since Python 3.3),.

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maijunjin.github.io

thinking in java 笔记

http://maijunjin.github.io/clearup/thinkingInJava.html

Notes of thinking in java. Thinking in java 内部类. Thinking in java 内部类.

maijunjin.github.io

git remote用法总结

http://maijunjin.github.io/git/2014/11/23/git-remote用法总结.html

Notes of thinking in java. 上一篇 Can’t locate ExtUtils MakeMaker.pm while compile git.

maijunjin.github.io

鸟哥的linux私房菜学习笔记

http://maijunjin.github.io/linux/2014/11/24/鸟哥的linux私房菜-学习笔记.html

Notes of thinking in java. 第一个扇区最重要，里面有 (1)主要启动区(Master boot record, MBR)及分割表(partition table)，其中 MBR 占有 446 bytes，而 partition table 则占有 64 bytes。 Dev/sd[a-p][1-15] 为SCSI, SATA, U盘, Flash闪盘等接口的磁盘文件名. Dev/hd[a-d][1-63] 为 IDE 接口的磁盘文件名. 磁盘分区指的是告诉操作系统我这颗磁盘在此分割槽可以存取的区域是由 A 磁柱到 B 磁柱之间的区块，如此一来操作系统就能够知道它可以在所指定的区块内进行文件数据的读/写/搜寻等动作了。分割槽的磁柱范围记录在是第一个扇区的分割表中但是因为分割表仅有64bytes而已，因此最多只能记录四笔分割槽的记录，这四笔记录我们称为主要 (primary) 或拓展 (extended) 分割槽，其中拓展分配槽还可以再分割出逻辑分割槽 (logical) ，而能被格式化的则仅有主要分割与逻辑分割而已。我们将 inode 与 block 区块用图来...

maijunjin.github.io

How to install Google Chrome 28+ on RHEL CentOS 6 or 7

http://maijunjin.github.io/linux/2014/11/30/how-to-install-google-chrome-28+-on-rhel-centos-6-or-7.html

Notes of thinking in java. How to install Google Chrome 28 on RHEL CentOS 6 or 7. I've built Chromium from regularly pulled source code in the past for CentOS 5 and it's a tough job on that platform and I didn't want to do it again for CentOS 6. Note that RHEL/CentOS 7 users are also catered for, so please keep reading if you're on that platform. The solution. By using libraries from a more recent Linux distro and putting them in a tree exclusively picked up by Google Chrome, you can indeed run the lates...

maijunjin.github.io

java类库中的TaskQueue是如何实现的

http://maijunjin.github.io/java/2015/02/18/java类库中的taskqueue是如何实现的.html

Notes of thinking in java. 上一篇 Netty in Action 1 Netty and Java NIO APIs. 下一篇 Error: systemd conflicts with initscripts 9.49.17 1.el7.x86 64.

veikr.com

go语言的中”继承” | go语言 | veikr的博客

http://veikr.com/201207/golang_extend.html

2012 年 07 月 21 日. Package main import( "fmt" ) type Human struct{ name string sex string } func (h Human) Eat(){ fmt.Println("Human.Eat:",h) } func (h Human) Walk(){ fmt.Println("Human.Walk:",h) } type SuperMan struct{ Human name string level int } func (s SuperMan) Eat(){ fmt.Println("SuperMan.Eat:",s) } func (s SuperMan) Fly(){ fmt.Println("I believe I can fly! S) } func test(h Human){ fmt.Println("test pass! 2016 年 04 月 07 日13:53. 2016 年 07 月 06 日15:14. 2016 年 07 月 13 日17:47.

maijunjin.github.io

文章内容概览

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Notes of thinking in java. Can’t locate ExtUtils MakeMaker.pm while compile git. Git How to create an empty stand alone branch in GIT. Git How to create an empty stand alone branch in GIT. Git What's the difference between 'git pull' and 'git fetch'? Git What's the difference between 'git pull' and 'git fetch'? Git git: fetch and merge, don’t pull. Git git: fetch and merge, don’t pull. Git sourcetree how to revert changes made since last commit(sourcetree如何撤销最近一次的提交). Git Set Up Git. Git Set Up Git.

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Notes of thinking in java. Thinking in java 9. Secrets of the JavaScript Ninja 6. Javascript regular expressions 1. Sublime Text 2 1. Linux ln -s 1. Secrets of the javascript ninja 4. Css float clear 2. Css clearfix hack 1. Sublime shortcut keys 1. Sublime text shortcut keys 1. Itms service plist 1. Thinking in java 内部类 1. Linux eclipse ant 1. The java ee 7 tutorial 2. Ejb the java ee 7 tutorial 1. Centos 6.4 2. WPS Centos 6.4 2. CSS transform skew 1. Graphical User INterfaces 1. Dynamic web project 1.

maijunjin.github.io

廖雪峰 Git教程笔记

http://maijunjin.github.io/git/2014/11/23/廖雪峰-git教程笔记.html

Notes of thinking in java. 分布式版本控制系统通常也有一台充当中央服务器的电脑，但这个服务器的作用仅仅是用来方便交换大家的修改，没有它大家也一样干活，只是交换修改不方便而已。 Sudo apt-get install git-core. 因为以前有个软件也叫GIT GNU Interactive Tools ，结果Git就只能叫git-core了。 Git config - global user.name "Your Name" $ git config - global user.email "email@example.com". Mkdir learngit $ cd learngit $ pwd /Users/michael/learngit $ git init Initialized empty Git repository in /Users/michael/learngit/.git/. 版本库 Repository 工作区有一个隐藏目录.git，这个不算工作区，而是Git的版本库。

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【驚愕の高価買取！in大森】宅配で洋服を売るならこちら！

そんな洋服を捨てられなくていつまでもタンスの奥に仕舞い込んでいる女性に破れた恋と着られない洋服は、洋服の宅配買取に託しましょうって声を大にして言いたい. みなさんは着ない服や着られなくなった洋服をどうしていますか燃えるゴミで捨てるフリーマーケットで売るリサイクルショップに持ち込んで売るずーっと取って置くといった方法がありますよね。そんなに物は多くないから引っ越しの準備なんて簡単に終わっちゃうなんて考えていたのが大間違いいや結構汗をかいちゃいました。なかにはえこんなに高く買い取ってくれるのっていうものもあったの。そうして一番高く買い取ってくれるお店で宅配便で売っちゃったのよ驚くような高値で買い取ってもらって本当にいいのって感じだってブランドものの洋服って言っても古いんだから査定額を提示されたときにはこれウソでしょうって、ちょっと信じられなかった。流行の移り変りって早すぎないもう少しゆっくりでもいいじゃないのよハッキリ言って、もうついていけません、私ってか.

pythonjiaocheng.github.io

python教程

L = [x * x for x in range(10)] L [0, 1, 4, 9, 16, 25, 36, 49, 64, 81] g = (x * x for x in range(10) g generator object genexpr at 0x7fecaa22fc60. Next(g) 0 next(g) 1 next(g) 4 next(g) 9 next(g) 16 next(g) 25 next(g) 36 next(g) 49 next(g) 64 next(g) 81 next(g) Traceback (most recent call last): File " stdin ", line 1, in module StopIteration. G = (x * x for x in range(10) for n in g: . print(n) . 0 1 4 9 16 25 36 49 64 81. Fib(6) generator object fib at 0x104feaaa0. However the result was this:. Traceback...

pythonjob.com

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