full stack developer meaning

name of the referenced module.second, the package1. Package1) definitionA package is a way to organize the Python module namespace by using the '. Module name ', specifically a folder containing __init__.py files, created to be organized with folders/modulesAttention:A. In python3.x, the import package does not fail even if there is no __init__.py file under the package, and in python2.x, the file must exist under the packageB. The purpose of creating a package is not to run, but to be imported

Split ()　　　　A=re.split ('ab','abc')Print (a)--[' ', ' C ']First split the AB, corresponding to match ab left nothing, so get the empty string, and ' C ', then AB again with C to match, no match on, output C2.11 Sub () Replace　　　　A=re.sub ('\d','abc','fhsdk3fhsdk' )print(a)--fhsdkabcfhsdkA total of three parameters, the first is the way to match, the second is after the replacement of it, the third is to find the object, and then replace2.12compile () compilationMake the rules first, then you c

restart the line.Here you need to set up a few initial configuration of the system, choose Next to continue the next step:The other steps are not important directly to the next step, mainly here, the non-administrative meaning is almost the user who needs to log in when you use the basic operation:If you install the system when the error occurred, ignore it, continue to install:Finally successfully entered the operating system,Using Xshell to connect

-like programming language [1], Big data developmentErlang = is a generic, concurrency-oriented programming language that is programmed by the Swedish telecommunications equipment manufacturer Ericsson, a functional typeThe Go ===go language is the second open source programming language released by Google 2009. The go language is optimized for programming multi-processor system applications, with go-compiled programs that are comparable to C or C + + code, and are more secure and support parall

python full stack development-day7 file processingOne, the file operationFirst, IntroductionComputer systems are divided into:computer hardware, operating systems, applicationsThree parts. Applications that we write in Python or other languages need to be saved on the hard drive if we want to keep the data permanently, which involves the application operating hardware, and it is well known that the applicat

SideImportSocketsk= Socket.socket ()#Create a communication tool, such as buying a phone when you callSk.setsockopt (socket. Sol_socket,socket. so_reuseaddr,1)#to avoid a service restart, report the address already in useSk.bind (('192.168.13.35', 8080))#bind address to Socket, Sk.bind ((' IP ', ' Port ') IP address and portSk.listen ()#Monitoring LinksCONN,ADDR = Sk.accept ()#Accept Client Links whileTrue:ret= Conn.recv (1024x768). Decode ('Utf-8')#receive client information, accept 1024 bytes

Full-stack python development-Day8 function basics, python-day8Full-stack python development-Day8 function basics I. Introduction 1. Why do we need to use functions instead of functions? #1. The code's organizational structure is not clear and its readability is poor #2. When repeated functions are encountered, you can only write implementation code repeatedly. C

the previous yield.Contents of Dictation:1. What is an iterative object and what is an iteratorFor:An object that contains the __iter__ method internally is called an iterative object.The internal must have an __iter__ method and an object of the __next__ method, called an iterator.2. How can iterative objects be transformed into iteratorsFor:Convert to Iterators: Iterate over objects. __ITER__ ()--and iteratorsFor example:L1 = [1,2,3]l1_obj = l1.__iter__ ()3. How iterators are evaluatedForIter

(C.findall (' AS3. 56, ')) 3. GroupingIn addition to simply judging whether a match is matched, the regular expression also has the power to extract substrings. With the () expression is to extract the group, can have more than one group, the use of a lot of groups, here is just a brief introductionImport re Print (Re.findall (R ' (\d+)-([A-z]) ', ' 34324-dfsdfs777-hhh ') # [(' 34324 ', ' d '), (' 777 ', ' h ')] Print (Re.sea RCH (R ' (\d+)-([A-z]) ', ' 34324-dfsdfs777-hhh ')

): Print (key, value) def __delitem__ (self, Key): print (' simulated delete succeeded!! ') obj = Foo () print (obj.__dict__) # View the object encapsulated field ' ' {' name ': ' Alex ', ' gender ': ' Female '} ' Print (foo.__dict__) # View the members of the class ' ' {' __module__ ': ' __main__ ', ' __doc__ ': ' \ n I am the comment of the class \ n ', ' __init__ ': 　　 6.4 Similar to string, list, why can we use for loop this object? 　　　　In fact: The __iter__ method in the default execution

(pattern,string,flags) features: nbsp Use regular match target string parameters: patter n Regular string target string Return value: NBSP;NBSp Iteration Object----Iteration content for match object Re.fullmatch (pattern,string,flags) nbsp function: match exactly one string parameter: nbs P pattern regular string NB Sp Target string return value: Match object, match to content NB Sp Re.match (pattern,string,flags)

its cascade is defined by the Z-index property.If you set position:relative, you can use Top,bottom,left and right to move this element relative to where the element should appear in the document. [meaning that the element actually still occupies the original position in the document, but is visually moved relative to its original position in the document]4 Absolute Absolute: objects are out of normal document flow and are absolutely positioned using

) # Counter ({' d ': 2, ' B ': 2, ' h ': 1, ' K ':-4}) # elements returns an iterator to how many times the element was repeated in that iteration How many of the elements are included in the device. # Elements with a number less than 1 are not included. The number of k less than 1 is excluded from print (List (c1.elements ())) # [' H ', ' d ', ' d ', ' B ', ' B ']print (C1.most_common (2)) #取出出现次数最多2个元素 [(' B ', 2), (' d ', 2)]　　　　　　　　Python