python programming examples advanced

= Make (chan int64, 2) if n = = 0 | | n = = 1 {return int64 (n)}runtime. Gomaxprocs (2) go func () {channel Test results: [Email protected]$ time Go testPASSOK _/home/crbsp/alex/go/fib 6.118s Real 0m6.674sUser 0m10.268sSYS 0m0.148s Iterative-based implementation scenarios:Func fib3 (n int) Int64 {var A, b int64a, b = 0, 1for i: = 0; i Test results: [Email protected]$ time Go testPASSOK _/home/crbsp/alex/go/fib 0.002s Real 0m0.547sUser 0m0.328sSYS 0m0.172s Clo

This article mainly introduces some advanced programming skills in Python, including important advanced knowledge points such as the streamer and decorator, which are essential basic skills for deep learning Python development, for more information, see Body: This article s

followsClass W (int):def __add__ (self, Other):Return int.__add__ (Self,other) +1def __repr__ (self):Return ' weibor%d '%self##公有api#def do_this (self):print ' This 'def do_that (self):print ' That '#对于常用的方法, this name should never be used, so do not create the following name method;Class Ba (object):def __my_methond__ (self):Pass#参数: Use lowercase and underline if necessary, they follow the same naming rules as variables#属性用小写或者小写加上下划线命名的, most of the time, indicates the state of an object, wh

The examples in this article describe the techniques used in the use of properties and methods in Python programming. Share to everyone for your reference. The specific analysis is as follows: One, property In Python, attributes are divided into public and private properties, and public properties can be invoked outs

Python programming-detailed description of string-related operation examples, pythonstring This article describes the string-related operations for Python programming. We will share this with you for your reference. The details are as follows: # Coding = utf8''' string is th

1. ConceptFunctions: Function, is the method inside the programmingFunction: Functional, is a programming paradigm2. FeaturesThink of calculations as functions, not directivesPure functional Programming: No variables required, no side effects, simple testingSupports higher-order functions with simple codeFunctional programming supported by 3.pythonNot purely func

f:target.send((file_path,f))@initdef cat(target):"查看文件，返回每行内容"while True:file_path,f=yieldfor line in f:target.send((file_path,line))@initdef grep(pattern,target):"过滤这行，如果符合返回文件路径"while True:file_path,line=yieldif pattern in line:target.send(file_path)@initdef printer():"打印"while True:file_path=yieldprint(file_path)#调用g=search(opener(cat(grep("wenyanjie",printer()))))g.send("C:\python_fullstack_wen\day24\wen") Simple way to implement the above program 12345678910111213

Functional programming is the use of a series of functions to solve the problem, according to the general programming thinking, the face of the problem we think the way is "how to", and functional functional programming thinking is what I want to "do." As for the features of functional programming are not summarized, w

position 1) to position 5 (excluding position 5) #区间中以步进2选取元素构成可迭代对象 (even if only #一个元素) to generate the corresponding iterator in[4]:iter1out[4]:Tee: Round-trip iterator itertools.tee (iterable) returns two independent iterators that are built on top of the same iterative object.In [1]: L = [1,2,3,4,5]in [2]: from Itertools import Teein [3]: A, B = tee (L) in [4]: A,bout[4]: (Examples are all about the function of the module, do not show th

suite (t):return Unittest.makesuite (t)Suite=unittest. TestSuite ()Suite.addtest ((S (T1), Suite (T2)))Return SuiteIf __name__== ' __main__ ':Unittest.main (defaulttest= ' test_suite ')#一般来说, all tests can be done with a global script that will find and run tests on the code tree called Test discovery#doctest: is a module used in an interactive command line session to extract versions from a document file or DocString, and to replay them to check that the output of the finalized instance is the

("ply"), and only if Grep_filter_co ("ply") has finished executing the suspend, Broadcast_co () will then send the data to the next coroutine.If you change the above code to this, there will be another mode of broadcast:f = open ("access-log"= Printer_co () Unix_tail_f_co (F, Broadcast_co ([ Grep_filter_co ('python', p)), Grep_filter_co ('ply ', p), Grep_filter_co ('swig', p)])

This article mainly introduced the Python design pattern programming in the visitor and the observer pattern, the design pattern development facilitates the coordination of the team collaboration programming code, the need friend can refer to the next Visitor modeI think that the visitor mode is to add additional visitors to the code function to complete the ext

flask is two contexts, and these two top and bottom include a large number of Python advanced programming applications. We need to understand the meaning of context and learn the application of Python's context Manager (with) and stack structure by reference to the flask mechanism. We will also learn how to solve the problem by reading the source code. ...5-1 Fl

platform makes it easy to use C + + APIs. It has advanced joint types and integrated and friction collision detection. Carols are used to simulate the environment of vehicles in virtual object reality and virtual organisms. Currently used in many computer games, 3 D authoring tools and simulation tools. ) Official: http://www.ode.org#更多请看: http://home.gna.org/oomadness/en/soya3d/index.htmlPrint (' optimization should be done on a program that's alrea