Detailed description of static data members in C + +

This article and everyone to share is mainly in C + + static data members of the relevant usage and source code examples, hoping to help you better learn C + +.

　　Static(statically stored) data member

　　StaticTest.cpp: defines the entry point of the console application.

　　1. Knowledge points

　　Static(statically stored) data member: created and initialized at compile time.

　　2. Code

　　#include "stdafx.h"

　　#include

　　using namespace Std;

　　Class computer

　　{

　　Private

　　float price;

　　Public

　　static float total_price;//static data member to compiler description: How to allocate memory for static data members

　　Computer (const float p)

　　{

　　Price = P;

　　Total_price + = p;

　　}

　　~computer ()

　　{

　　Total_price-= Price;

　　}

　　void print ()

　　{

　　cout<< " Total Price:" <<total_price<<endl;

　　}

　　};

　　float Computer::total_price = 0;// true memory allocation

　　int _tmain (int argc, _tchar* argv[])

　　{

　　Computer COMP1 (7000);

　　cout<< " buy computer 1 " <<endl;

　　Comp1.print ();

　　cout<<computer::total_price<<endl;;

　　Computer COMP2 (4999);//

　　cout<< " Total Price:" << " after purchasing computer 2 " <<endl;

　　Comp1.print ();

　　Computer Comp3 (2500);

　　cout<< " buy computer 3 " <<endl;

　　Comp1.print ();

　　push off the computer 2

　　Comp2.~computer ();

　　cout<< " back computer 2 " <<endl;

　　Comp1.print ();

　　return 0;

　　}

　　3. Running Results

original link:http://www.maiziedu.com/wiki/cplus/data/

Detailed description of static data members in C + +