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Today I learned the basics of c++stl generic programming, and I organized the main knowledge as follows:STL provides three types of components: containers, iterators, algorithms. Supports generic program design standards.There are two main types of containers: sequential containers and associative containers.Sequential containers: Vector,list,deque,string are a collection of successive elements.Associative container: Set,multiset,map,multimap contains

,%f,%f]/n", x.x, x.y, x.z);Output: x = [-0.000000, 2.000000, 0.000000] Is the result of two steps ahead. The above Irrlicht code needs to be noted that the parameter is degree is the unit is the number of degrees, other times the default is radians.D3D uses the following functions to achieve rotation, without implementing the source code, there is not much to say.Build a matrix which rotates around the X axisd3dxmatrix* WINAPI d3dxmatrixrotationx (D3dxmatrix *pout,

AOPIntroduction to Aspect-Oriented Programming----Basic concepts (3) The Aspect-Oriented Programming idea is very simple. SlaveProcess-oriented and function-orientedProgrammingObject-orientedProgrammingInterface-orientedProgrammingComponents and modulesThe development history of

1. Basic jQuery syntax · Chained programming $ ("# div1" ).show().css ("color": "red ") · Use a ready event as the start to process HTML documents. $ (Document). ready (function (){ // Write your code here... }); Abbreviation: $ (function (){ // Write your code here... }); · The onload event starts after the dom Element Image css is loaded, and ready starts after

Python day 6 (3) Python functional programming 1, pythonday I. Functional Programming Concepts A function is an encapsulation supported by Python. By splitting a large code segment into a function and calling a function at a layer, we can break down a complex task into a simple task, this decomposition can be called pr

*/ curl_easy_cleanup(curl); } return 0;} 2. Description:As in the translation using As mentioned in libcurl C interface (important), the steps for easy interface are initialization, setting options, and execution. 1) initialization: curl_easy_init function: This function installs the program environment required by libcurl. It can be considered as a library loader. That is, use this function to load the library file. 2) set the option: cu

. So, for the design of the Python virtual machine single-threaded (GIL), only threads are performing I/O-intensive applications to better exploit Python's concurrency .Compare thread,threadingPython multiple modules can be multithreaded programming, including: Thread,threading and so on. They can all be used to create and manage threads.The thread module provides basic threading and locking support, w

(This number = number of Hidden Directories + number of common Directories ). Go to the "AA" directory and run the LS-Al command. (To see the hidden file, add the-a parameter ). Total 112Drwxrwxr-x 5 zcx 4096 August 18 21:48.Drwxrwxr-x 4 zcx 4096 August 3 10:18 ..-Rwxrw-RW-1 zcx 1840 20:19 alloc. h-Rwxrwxr-x 1 zcx 8078 21:48 A. Out-Rwxrw-RW-

1.jquerybasic syntax middot=chainprogramming example (quot=nvidiv1quot=#.show(=.css ( quot; color quot;: quot; red quot;) middot; use a ready event as the start to process HTML documents. $ (document ). ready (function () {// write your generation here 1. Basic jQuery syntax · Chained programming $ ("# div1" ).show

nonprinting characters, or characters that have other uses.These character literals can appear anywhere in the string, and will also be parsed as a character.String Features:Once the strings are created, their values cannot be changed. To change the string saved by a variable, first destroy the original string, and then populate the variable with another string containing the new value.Convert to String:ToString () Method: Returns the string representation of the corresponding value.Numeric, Bo

loop;Continue resumes from the top of the loop after exiting the loop1.5.7 Switch statementswitch (expression): {Case value1:StatementBreakCase Value:2StatementBreakDefaultStatement}1.5.8 with statementsThe function of the WITH statement is to set the scope of the code to a specific objectWith (expression) statement;1.5.9 Label StatementUse the Label statement to add tags to your code for future useLabel:statement;1.6 Functions(1). Disclaimerfunction

logical Operators　　Logical operation is the basic function of any programming languagePython provides 4 sets of logical budgets　　Identity operatorIs: To determine whether the left object reference is the same as the less right operand-end object reference, or with None ;　　Comparison operatorsMember operatorsIn or not in: Test member Relationship　　logical operatorsAnd, or, not3.6 input/Output　　InputInput ()

()), and then compare the result to the rule above.4, any number and Nan compare return false.Equality operatorsequals sign (= =) does not equal (! =) Convert the operands first, and then compare their equality.Congruent (= = =) Not congruent (!) = =) does not convert operands, directly compared.A===b must have a==b, and a!=b must have a!==b.Conditional operatorVariable = boolean_expression? True_value:false_value;The expression is based on conditionally assigning a value to a variable accordin

Learning ASP. NET Core Razor programming Series 3-create a data table and a project Basic page, asp. netrazor 1. Create a script tool and perform the initial migration In this section, you will use the package Management Console (PMC) to update the database: • Add a Visual Studio Web code generation package. This packa

Basic shell programming [3]-common tools awk \ sed \ sort \ uniq \ od, awkuniqAwk Awk is a very useful thing. It is widely used in the presentation and processing of linux system analysis results. You can also use pipelines, input | awk ''| output1. first, you need to know the form of awk 'COMMAND 'file such as awk' {print $0} 'a.txt B .txt (one or more files c

class values (' c004 ', ' Class four ')INSERT into Users values (' 1 ', ' keyboard ', ' c001 ')INSERT into Users values (' 2 ', ' mouse ', ' c002 ')INSERT into Users values (' 3 ', ' Lie Triple ', ' c003 ')INSERT into Users values (' 4 ', ' Zhao Si ', ' c004 ')CREATE TRIGGER---cascade deleteCreate Trigger Class_deleteOn classInstead of deleteAsdeclare @aa nvarchar (50);Select @aa = Classcode from class;Del

mutually agreed upon by the parties concerned). Definition: An interface that is independent of the system platform and programming language through which programs and scripts can dynamically access and modify the content, structure, and style of the document. JavaScript is just one of the languages in which the DOM is used.Second, JavaScript syntax1. Writing JavaScript scripts requires only a text editor and a Web browser.Insert the JavaScript scrip

Basic OO programming skills (3) Comments 1. avoid relying on Annotations to avoid refactoring Note can make the code easier to understand, but in many cases, it will make the programmer too "dependent" comment and reduce the degree of self-description of the Code. Need to comment? Is the code name not clear enough, or

Simple Java Programming Application --- 1. HelloWorld (the source of HelloWorld); 2. Output Personal Information 3. Output special patterns and helloworld personal information After setting up a Java development environment, many of our partners are eager to develop their first Java program. Here, Niu Ge provides three simple Java applets. You can enjoy the pleas

function in a functional language, such as an outgoing/incoming parameter and a common variable.Unlike imperative programming languages, functional programming languages have some special concepts. We will discuss them separately:Anonymous Functions In functional programming languages, a function can have no name. An anonymous function usually indicates "a piece