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The breakfast was delicious and the food was good.

5 minutes to learn to do 100 kinds of Super delicious breakfastThe importance of breakfast is very clear, but in a hurry morning, how fast and good to do a breakfast? Health times June today brings you healthy and delicious cuisine cheats: 5 minutes to learn 100 kinds of Super delicious breakfast!Rice CakesOne of the most simple, not wasted egg cakes, if the day before the left Rice, then the 2nd days of breakfast has fallen.Ingredients: 2 eggsIngredi

python-iterator, generator and for loop mechanism

general function definition, however, returns the result using the yield statement instead of the return statement, the yield statement returns one result at a time, and in the middle of each result suspends the state of the function so that it can continue execution the next time it leaves.1 defTest ():2 yield13 yield24 yield35res=Test ()6 Print(RES)7 Print(Res.__next__())8 Print(Res.__next__())9 #Result: Ten #1 One #2"2" generator expression: Similar to list derivation, but the ge

Eggs dropping puzzle (2 Eggs, floors)

The topics are as follows:You are given the eggs, and access to a 100-storey building. Both eggs is identical. The aim is for find out of the highest floor from which an egg would not be break when dropped out of a window from this floor. If an egg was dropped and does not break, it was undamaged and can be dropped again. However, once an egg was broken, that's i

"Python iterator, generator"

.return can only return one value at a time, the function terminates, and yield returns multiple values, each time it is returned, the function is paused, and next will continue from the last paused position.Cases:def counter (n): print (' Start ... ') i= 0 while i N: yield i i+=1 Print (' End ... ') g=counter (5) print (g) print (Next (g)) print (Next (g)) print (Next (g)) print (Next (g)) print (Next (g)) # Print (Next (g)) #会报错 OutputStart ... 012342. Gener

Python: iterators and generators

multiple values, each time it is returned, the function is paused, and next will continue from the last paused position.Cases:def counter (n):Print (' Start ... ')I=0While I Yield II+=1Print (' End ... ')G=counter (5)Print (g)Print (Next (g))Print (Next (g))Print (Next (g))Print (Next (g))Print (Next (g))# Print (Next (g)) #会报错OutputStart ...012342. Generator functionsGenerator functions: Regular function definitions, however, use the yield statement instead of the return statement to return th

User Authentication steps for mongodb3.X and mongodb3.x

. system. version. save (schema); 3. drop the user who used SCRAM-HAS-1 authentication before using the revoke use admin; db. createUser ({user: 'shang ', pwd: 'shang', roles: [{role: 'root', db: 'admin'}]}); // now create is to use MONGODB-CR authentication user 5, to enable auth mode restart use admin; db. auth ('shang ', 'shang'); 6. You can also create other users to use robo; db. createUser ({user: 'robo

Ubuntu12.04OpenStackSwift single-node deployment Manual

https://github.com/openstack/swift.gitInstall the Swift development versionCd ~ /SwiftGit checkout-t origin/stable/grizzly # checkout stable branch 1.8Python setup. py developCd ..Get the python-swiftclient code from git and download it to your local device.Git clone https://github.com/openstack/python-swiftclient.gitInstall the python-swiftclient development versionCd ~ /Python-swiftclientPython setup. py developCd ..Configure nodesCreate file/etc/swift/proxy-server.conf,[DEFAULT]Bind_port = 8

Python3 iterators and generators

(a)) (Next (a)) print (Next (a)) # Run result # next method:# first# # second# * third# 3print ("For Loop:") # with the call next equivalent B=my_gen ( ) for Elem in My_gen (): print (elem) # Run result # for loop:# first# # second# 3Take a look at the generator using loops# The element of the reverse yield object def rev_str (my_str): Length=len (MY_STR) for I in range (length-1,-1,-1): yield my_str[i ]for Char in Rev_str ("Hello"): print (char) # run result # o# l# l# e# HB

Chicken or eggs first, of course there is an answer

A chicken or an egg is an ambiguous question. In fact, there is a clear answer. First, the world view, and then the definition. This boring question has a strong sense of sophistry in ancient Greek philosophy. I remember that when I took the Chinese reading test, I asked you what you thought ......, I think what is my personal opinion, but if I answer the question truthfully, the teacher will make a mistake, so the subline of the question is to ask th

gis+= Geographic information + Large data--windows deployment pandas environment and code test validation

the PIP in the Windows environment to install A: Download the PIP deployment package Https://pypi.python.org/pypi/pip#downloads Extract to a location arbitrarily B: Install Pip C:\users\administrator>python c:\Python34\pip-8.0.2\setup.py Install running install running Bdist_egg running Egg_ Info creating Pip.egg-info Writing requirements to pip.egg-info\requires.txt writing to Dependency_links Dependency_links.txt writing Pip.egg-info\pkg-info writing entry points to pip.egg-info\entry_points

Quality and innovation become the focus of GDC "state of Unreal"

to the price of its high-end PC VR helmet and motion controller, Oculus also announced that the company will give Epic 250 sets of Rift + Touch devices as prizes to developers for Unreal Dev Grants developer-funded projects. "Mechanical Reload" is now on the shelves The Epic original game "mechanical Reload", which was unveiled late last year at Oculus Connect 3, is the most important piece of the Unreal Engine's outstanding VR features, with exaggerated arcade moves, awesome battles and input

Python full stack day18 (ternary operation, list parsing, generator expression)

.pyName= ' Zhangsan ' Print (' SB ' if name = = ' Zhangsan ' Else ' handsome ')  Four, a list of expressions, an example of day18-8.py#使用for循环实现生鸡蛋egg_list =[]for i in range: egg_list.append (' egg%s '%i) print (egg_list) #使用列表表达式生鸡蛋l =[' egg%s '%i for I in range (]print) (l) [' Egg 0 ', ' egg 1 ', '

Iterators and generators (i)

realizes the delay calculation, saves the memory3, the generator book and other data types are implemented iterator protocol, but the generator attached a delay to calculate the taste of memory,The rest of the iterative objects do not have this functionFour: Generator functions1 defLay_eggs (num):2Egg_list = []3 forEgginchrange (num):4Egg_list.append ('Egg%s'%egg)5 returnegg_list6 7Total = Lay_egg

Python Data Analysis EPD

locationContains only ASCII letters, numbers and the following punctuationChars: '. ', ' _ ', '-'[/home/jp/downloads/epd_free-7.2-2-rh5-x86_64] >>>/HOME/JP/EPDInstalling TO/HOME/JP/EPD ... please waitFixing RPATH ...Trying to run Python interpreter:/home/jp/epdCompiling all Python modules ...Extracting: '. Zips/special.zip 'Bootstrapping:local-repo/enstaller-4.4.1-1.egg322 KB [... ...] ..... ..... ..... .......................................Appinst-2.1.0-1.

python-lists, tuples, dictionaries

ListThe sequence is the most basic data structure in Python. Each element in the sequence is assigned a number-its position, or index, the first index is 0, the second index is 1, and so on.A = ['spa'egg', [+]print(a) # [' Spa ', ' egg ', [+]Some basic operations of the listIndex, SliceA = ['spa'egg', [+]print(a[1]) #eggprint(a[:1])#[' Spa ']modifying element valuesA = ['spa'egg',]a[2] =print(a #[' Spa ', ' egg

Windows Platform Python 2.7 environment compilation installation Zbarlight

-info\sources.txt ' Installing library code to build\bdist.win32\eggrunning install_librunning build_pyrunning build_extbuilding ' Zbarlight._zbarlight ' Extensionc:\mingw\bin\gcc.exe-mno-cygwin-mdll-o-wall "-ic:\program Files (x86) \zbar\include"-ic:\python27\include-ic:\ Python27\pc-c Src/zbarlight/_zbarlight.c-o build\temp.win32-2.7\release\src\zbarlight\_zbarlight.o-std=c99writing Build\temp.win32-2.7\release\src\zbarlight\_zbarlight.DEFC:\mingw\bin\gcc.exe-mno-cygwin-shared-s BUILD\TEMP.WIN

Scrapy wrong record

Before using Scrapy to write a crawler on the server, it has been used well. Results the day before yesterday a classmate installed on the top of the NLTK can no longer be used (whether using shell or crawl), the error is as follows: Traceback (most recent): File "/usr/local/bin/scrapy", line 9, in Hint Conch This module is not found, this may be Sys.path was changed. Luckily, there was a Python interactive window on the Tmux that could look up the old Sys.path. In contrast to the present Sys

Python Fifth day Module (2)

module actually tells the Python interpreter to explain the py file. Import a py file, the interpreter interprets the py file Import a package, the interpreter interprets the __init__.py file under the package So the question is, is the module being imported based on that path as a benchmark? namely: Sys.pathImportSYSPrintSys.path Result: The default path is a list. ['/users/wupeiqi/pycharmprojects/calculator/p1/pp1','/usr/local/lib/python2.7/site-packages/setuptools-15.2-py2.

Authentic Python (i)

]This is done using the Python syntax, and can also be performed using the Python interpreter. But, please look carefully again, do you feel familiar? In addition to using the native dictionary type of Python, what is the python thing? This kind of forcing is about the same height as the Mariana Trench.To pursue a higher force, Python has always been a human rather than a machine to think about the problem, we will continue to see this example.The law of Egg

Nginx Configure https/Certificate update/Let's encrypt free certificate (HTTPS) as well as error resolution!

Build/bdist.linux-x86_64/eggRunning Install_libRunning Build_pyCreating buildCreating Build/libCopying argparse.py-> Build/libCreating build/bdist.linux-x86_64Creating Build/bdist.linux-x86_64/eggCopying build/lib/argparse.py-> Build/bdist.linux-x86_64/eggByte-compiling build/bdist.linux-x86_64/egg/argparse.py to Argparse.pycCreating Build/bdist.linux-x86_64/egg/egg

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