C++

C Language 7th--First Class1. Common Language :The faster the underlying language is, the more difficult it is to understand. The more advanced languages run slower, but the easier it is to understand.Assembly language (Compute instruction set in

Boost parsing JSONTo include a header file:#include #include /*g++-o json_test json_test.cpp*/#include#include#includestring>#include#includeusing namespacestd;using namespaceboost::p roperty_tree;voidCreate_json () {Ptree Pt_1,pt_11,pt_12;

1. Basic input and output, using cin>> input input, using cout#include using namespacestd;intMain () {inta,b,d,min; cout"Enter The numbers:"Endl; CIN>>a>>b; cout"min ="b?b:a); for(d=2;d ) if((a%d) = =0) && ((b%d) = =0)) Break; if(d==min)

Part 0 "Object creation" modeBypassing new in object creation mode avoids tight coupling (relying on specific classes) caused by object creation (new), thus supporting the stability of object creation. It is the first step after the interface

C + + has char and wchar_t support for characters, two of which handle a 8-bit character, while the latter represents more characters.There are two ways in which C + + handles large character sets: First, if the large character set is the

1, in the actual development, the reference type variable value is used in the parameters of the function. It does not create additional space (improving program efficiency), which is equivalent to the alias of the variable, which represents the

Transferred from http://www.jb51.net/article/37527.htm, thanks to the author#include "stdafx.h"#include using namespace Std;Class B{PublicB ():d ata (0)//default constructor{cout }B (int i):d ata (i)//constructor with parameters{cout }B (b &b)//copy

One, C + + bool, int and other types into std::string:Method:BOOL B = true;StringStream SS1;SS1 std::string str = SS1.STR ()cout Second, C + + std::string conversion to const char *Method:std::string ss = "Hello World";const char * str = SS.C_STR ();

-Bits and bytes (256 states 8 bits) 8b=b-program writing: Border of Door door int main () main function can call other functions print-print F-function printf-print function/*/comment multiple text multiline comment Cannot nest shortcut annotations:

C # Common Interface Learning ienumerableWu Long HarryDate: 2015-10-24Platform: Window7 64bit,visual Studio Community This article refers to: MSDN ienumerable Interface MS DotNet Source Code Have you ever achieved a two-prong tree--1

C + + dynamic Array simple analog two-yuan heap #includeusing namespace Std;class binaryheap{private:int cap; The maximum capacity of the array is int size; The current number of elements int* datas; Array first address public:explicit binaryheap

Sometimes we need to bind the type to some data, for example, we usually use a singleton to associate a string with a function (commonly called registration), and then create an object from a stringclass A {public: staticreturnnewAnd then like

I. Dictionary and Hashtableboth dictionary and Hashtable are dictionary classes in the. Net framework and can be based on Key Quick Find valueThe performance of the dictionary depends on the implementation code of the GetHashCode () method of the

First section 1-for Cycle introductionGrammar:for (conditional expression){EXECUTE statement}Practice:Chapter III Operations1. Write a program to print values from 100 to 200;2. Write a program to print from 10 to 1;3. Write a program to print all

An algorithm that defines an infinite set, function, or subroutine, directly or indirectly, at run time, by means of a concise statement to create a re-entry phenomenon.Features: Recursive algorithm recursive (simple to complex reasoning process)

In the previous section I mentioned that the Windows,linuix kernel already has a complete TCP/IP implementation, as long as the dedicated interface functions are invoked: Sockets and Tli (Transport Layer interface) is sufficient, just as I am

/*SOCKLIB.C * This file contains functions used lots when writing Internet client/server programs. The both main function here is: *-------int Make_server_socket (portnum) return a server socket OR-1 if error *-------I NT Make_server_socket_q

CCC Canadian High School of Information science OrsayRemaining sourcesCODEVS[3312]--CCC 1996 deficient, Perfect, and abundant--http://codevs.cn/problem/3312/poj[1928]--perfection--http://poj.org/problem?id=1528Codevs Description--Chinese titleTitle

Get string Length:size_t strlen (const char *str);  string copy function: Copy the contents of src into dest , it will overwrite the original content, it will put src in the , no overwrite content unchanged if the length in the SCR exceeds the

C ++ type (1), Type Variable Functions of Variables Where is the information stored? Value to store Storage type information Naming rules Only letters, numbers, and underscores can be used in the name. The first character of the name cannot