c# cookbook

[C #] Concurrency in C # Cookbook (1)-concurrent programming overview,Concurrent Programming Overview We often hear in our ears about terms such as high performance, concurrency, and parallelism, and many people have some misunderstandings about concurrent programming. Misunderstanding 1: Is concurrency multi-thread?A: multithreading is only one form of concurren

), which provides CLI programs with a virtual machine environment that uploads and runs managed code on a variety of possible platforms, is just a specification, for example, Microsoft and Momo have their own implementations. The JIT and GC of the CLR for net should fall into this scope.The. NET Framework is a Microsoft implementation of the CLI, and, of course, the best implementation of the present, the. NET Framework mainly includes the CLR and the BCL,CLR is the core of the implementation of

ConceptThe asynchronous function (asynchronous funcation) is a higher level abstraction above the TPL, which really simplifies asynchronous programming. Abstraction hides the main implementation details, allowing programmers to make asynchronous programming easier without having to consider many important things.More contentTo create an asynchronous function, first annotate a method with the Async keywordNote: This article is read in the "C # multithr

to use the extension code to perform the correct conversion, as follows:Static Pyobject *py_print_chars (Pyobject *self, Pyobject *args) { char *s = 0; int Len; if (! Pyarg_parsetuple (args, "es#", "Encoding-name", s, len)) { return NULL; } Print_chars (S, Len); Pymem_free (s); Py_return_none;}Finally, if you want to work directly with Unicode strings, here is an example that shows the underlying operation access:Static Pyobject *py_print_wchars (Pyobject *self, Pyobject *args) { p

;>Print_chars.Argtypes=(cTYPES.C_char_p,)>>> print_chars (b " Hello World ' ) 48 6c 6c 6f (6f) 6c 64>>> print_chars (b ' hello\x00 World ' 48 6c 6c 6f>>> print_chars ' Hello World ' ) traceback (most recent call last): File "1, argument 1: >>> If you want to pass a string instead of a byte, you need to perform a manual UTF-8 encoding first. For example:Print_chars(' Hello World '). Encode(' utf-8 '))6c 6c 6f, 6f 6c>>> For other extension tools (such as Swig, Cython),When you use them

a Python object to the corresponding C parameter.This section of code uses Python's caching protocol to match any input parameter that looks like a double-precision array(such as numpy arrays, arrays created by array modules, etc.), refer to section 15.3 for more information.Inside the TYPEMAP code, variable substitution such as $ and $ will get the C parameter value of Typemap mode(for example, map to dou

(processingtasks);}Alternatively, this can written as:Static Asynctaskint> Delayandreturnasync (intval) { awaitTask. Delay (TimeSpan. FromSeconds (Val)); returnVal;}//This method is now prints "1", "2", and "3".Static AsyncTask Processtasksasync () {//Create a sequence of tasks.taskint> Taska = Delayandreturnasync (2); Taskint> TASKB = Delayandreturnasync (3); Taskint> TASKC = Delayandreturnasync (1); vartasks =New[] {Taska, TASKB, TASKC};varProcessingtasks = tasks. Select (Asynct = { varresult

(OnPreRender)Complete pre-rendering (Onprerendercomplete)Save ControlState (SaveControlState)Save ViewState (SaveViewState)Render (Render)Page_Unload.Interview Question 6 What is managed code in C #A: Code that is executed by the common language runtime environment (not directly by the operating system). Managed code applications can obtain common language runtime services, such as automatic garbage collection, runtime type checking, and security sup

Http://www.cppblog.com/mzty/archive/2007/03/04/19163.html C ++ random Classification List (advanced) C ++ casual Classification List (advanced ): C ++ highlights:61 object-oriented design principles Http://www.cppblog.com/mzty/archive/2005/12/29/2247.html C ++ Resources Http://www.cppblog.com/mzty/archive/2005/11/16/

This book is not intended for beginners. This book mainly explains how to use some ready-made class libraries, including the C ++ standard library and boost library. Chapter 4 Create a c ++ Application 1. Compile, Link, static/dynamic library 2. Compiler 3. GNU Compiler set (GCC) 4. Visual C ++ 5. Intel Compiler 6. metrowerks Compiler 7. Borland Compiler 8

　　Compress cookbook When downloading many JS files, it will bring a lot of overhead. The server can use simple compression technology to link the files to a file. 　　Compression script 　　Use the following command to compress your program's Js script: C:\workspace\Cookbook>js cookbook\scripts\build.js My local running re

: Network Disk DownloadContent Introduction······"Python Cookbook (3rd edition) Chinese version" describes the Python application in various areas of the use of techniques and methods, its topics cover the data structure and algorithms, strings and text, numbers, dates and times, iterators and generators, files and I/O, data encoding and processing, functions, Classes and objects, metaprogramming, modules and packages, networking and web programming,

tuples (priority, item), you can compare them as long as the precedence is different: a= (1,item ( " foo ' ') b = (5,item ( " bar )) c = (1,item ( ' gork " print ( " A , Ab) print ( a " , a>>> aB: truetraceback (most recent) :"D:\4autotests\ 02script\python-cookbook\python-cookbook-master\src\1\5.implementing_a_priority_queue\examp

, price, (year, mon, day) = data >>> name 'Lucy '>>> shares50 >>>> price12.1 >>> year2016 >>>> mon7 >>> day31 >>> s = 'hello' >>> s 'hello'>, b, c, d, e = s> c 'l'> d 'l'> e 'O'> data = ['Lucy ', 50, 12.1, (, 31)] >>_, shares, price, _ = data # When you want to discard some values, you can select a variable name that is not used as the name of the value to be discarded, for example, "_" >>>> shares50 >>> pr

Online see about the use of pandas, although practiced a lot, but still some can not remember very clearly. So it was written down.Chapter1 is talking about reading a CSV file. The following code:1 #%%2 ImportPandas as PD3 ImportNumPy as NP4 ImportMatplotlib.pyplot as Plt5 #Make the graphs a bit prettier6Pd.set_option ('Display.mpl_style','default')7plt.rcparams['figure.figsize'] = (15,5)8 9 #%%TenBROKEN_DF = Pd.read_csv ('C:\Users\rui\Desktop\pandas-

IOS Game Development Cookbook, ioscookbook "/>Book Description Want to build games with iOS technologies? This cookbook provides detailed recipes for a wide range of common iOS game-development issues, ranging from 2D and 3D math to Game Center integration, and OpenGL to performance. if you're familiar with iOS and Objective-C, this is the problem-solving guide

Javascriptmvc provides powerful support for testing. By using funcunit, you can easily create functions and unit tests that can run in a browser or automatically. In the previous lecture, we used the scaffolded command, and then the system helped you create a test script. Here we will do the following. Run the unit test. Understand unit testing. Run the function test. Measure the test taker's understanding about the function. Test the istasty function. 　　Run unit test Funcunit uses qunit

performed for Item instances: a=Item('foo')b=Item('bar')print('a If elements are expressed in the form of tuples (priority, item), you can compare them as long as their priorities are different: a=(1,Item('foo'))b=(5,Item('bar'))c=(1,Item('gork'))print('a The introduction of additional index values and the creation of tuples in the (priority, index, item) method can avoid the problem that the same priority cannot be compared, because no two tuples ha

Python cookbook (data structure and algorithm) is used to find the similarities between the two dictionaries. This example describes how to find the similarities between two dictionaries in Python. We will share this with you for your reference. The details are as follows: Problem:Find the same places in the two dictionaries (the same key, the same value, etc) Solution:Passkeys()Oritems()Methods To perform common set operations (such as Union, interse

with multiple possible options: >>> import os>>> os.getcwd () ' D:\\4autotests\\02script\\pythonbase ' >>> os.listdir () [' foo.py ', ' hello.txt ', ' Makefile ', ' spam.c ', ' spam.h ', ' test1.py ']>>> filename=os.listdir () >>> filename[' foo.py ', ' hello.txt ', ' Makefile ', ' spam.c ', ' spam.h ', ' test1.py ']>>> [name for name in filename if name . EndsWith (('. C ', '. h ')] [' spam.c ', ' spam.h ']>>> any (Name.endswith ('. Py ') for name