Python

Recently idle to have nothing to do, engage in the PY deal!As a fast-rising language, python programming is really easy to use, which is not to say that he can replace other languages, which is impossible for all languages at present;Python has his

Write this essay, is to see Vamei big capital of the Python Quick Tutorial study notes, with this encourage each other, link: http://www.cnblogs.com/vamei/archive/2012/09/13/2682778.html"First Lesson"1, use Python to write a HelloWorld small program,

1.1   Access Control1.1.1   External code modifies the properties of an instance>>> Daidai = Student (' Daidai ', 99)>>> Daidai.score99>>> Daidai.score = 1-- Modify score Properties>>> Daidai.score1001.1.2   External Code Access instance property

Python notes-day4-'s decoratorrequirement: for F1 ~f100 Add a log: defOuter ():#define the added log Print("Log") defF1 (): outer ()#calling functions separately Print("F1")deff2 (): outer ()#calling functions separately Print("F2")deff100

Everything in Python is an object, and a function is also considered an object.several built-in functions are commonly used in Map,reduce, Filter,lamda.FilterFilter out elements that meet the filter criterias = "@431$%$314&6i7 (431) ^&^%2l#%^i6861642

Hope to continue to update through the blog park, share and record the basic knowledge of Python to the advanced application of the dots drop!Wave Six: The 2nd Chapter[Overview] List and tuplesData structures are a collection of elements that are

1. Use%s to indicates ="welcome%s to login%s"%("Alex"," China")Print(s) s="welcome% (name) s to login% (city) s"%{"name":"Alex"," City":"Wuhan"}Print(s)s = "%10s is%+10d years old"% ("Alex",-10)Print (s)Alex is-10 years oldExplanation: The first

The first day of learning python flask , my little white brain, finally completed the environment configurationDetails are as follows, other small white mistake detours, hope and I like the people who love Python believe:python is the best language,

Python functionsFirst, the functionA function is a group of statements that accomplishes a particular function, which can be used as a unit and give it a nameThe function name can be executed multiple times in different places of the program (this

Official Notes :Super (type[, Object-or-type])Return the superclass of type. If thesecond argument is omitted the Super objectReturned is unbound. If The second argument is an object,isinstance (obj, type)Must be true. If The second argument is a

ImportFtplibImportOSImportSocketImportSyshost='192.168.216.193'Dirn='c:\\ftp\ftp.123'FILE='ftp.123'user_name='123'PWD='123'defDownloadfile (file_name):Try: F=Ftplib. FTP (HOST)except(Sockt.error, Socket.gaierror) as E:Print('Error:cannot

650) this.width=650; "src=" Http://s4.51cto.com/wyfs02/M00/84/02/wKioL1eDSCSRqbyiAAAor3q_cpk181.jpg "title=" Python19.jpg "alt=" Wkiol1edscsrqbyiaaaor3q_cpk181.jpg "/>1, Introduction Python comes with a lightweight relational database, SQLite.

Introduction: These days in the study of how to call the Sina open Platform API analysis of Sina Weibo user dataResults: Successfully called Sina API to get some personal information of users and no number of public WeiboInsufficient: Sina open

How are collections defined ?You can convert a list to a collection, for example:>>> a=[1,2,3]>>> Set (a) set ([1, 2, 3])Features of the collection:1. The elements in the collection are unique>>> a[1, 2, 3, 4, 3]>>> set (a) set ([1, 2, 3, 4])From

1.1   Anonymous FunctionsSometimes it is easier to pass in anonymous functions without explicitly defining a function.>>> list (map (Lambda x:x*x, (1, 2, 3, 4, 5))[1, 4, 9, 16, 25]before the colon x represents a function parameter . there is a limit

1.1   Decorative DeviceA function object can be assigned to a variable, so the function can also be called by a variable.>>> def now ():.. print (' 2016 ')...>>> Now ()2016>>> F = Now--The function object assigns a value to the variable>>> f ()--

1.1   Partial functionPython 's functools module provides a number of useful features, one of which is the partial function. It is important to note that the partial function here is not the same as the partial function in mathematical sense. When

Day10Previous section review:Socket1 Importing Modules2 Creating sockets3BytesSend Sendall10 bytes = Send ("ALEX123123DEQASDSA")Sendall: #会源源不断的发送完While True:10 bytes = Send ("ALEX123123DEQASDSA")10 bytes = Send ("ALEX123123DEQASDSA")10 bytes = Send

Suppose you now have such a SQL log:SELECT * from Open_app WHERE 1 and ' client_id ' = ' a08f5e32909cc9418f ' and ' is_valid ' = ' 1 ' ORDER BY id DESC limit 32700,10 0;# time:160616 10:05:10# [email protected]: SHUQIN[QQQQ] @ [1.1.1.1] id:46765069

Python Opearte MS-SQL Use Pymssql, opeartepymssql See a lot of open source database will use MySQL, Python also use, but I have been used to the use of graphical interface, a strong sense of Operation MS-SQL Seeing that Python also provides the