摘要：需要注意的是操作符重载，赋值操作符必须返回*this；输入输出操作符不能作为类的成员函数，一般应声明为friend；关系操作符应定义为内联函数，也应为非成员函数；#include "stdafx.h"#include <iostream>using namespace std;class myClass{public: myClass(int ,int ,char*); ~myClass(); void printMem(); int get_len(); myClass &operator+(const myClass&); friend os 阅读全文

摘要：#include <bitset>#include <iostream>using namespace std;int _tmain(int argc, _TCHAR* argv[]){ bitset<30>myBitSet; myBitSet.set(0); myBitSet.reset(0); myBitSet |=1UL<<27; myBitSet &=~(1UL<<27); for (int i = 0;i<30;i++) { cout<<myBitSet[i]<<endl; } retu 阅读全文

摘要：#include "stdafx.h"#include <iostream>using namespace std;#define ARRYLEN(arry)(sizeof(arry)/sizeof(arry[0]))template <class T>int ArryLen(T&arry){ return (sizeof(arry)/sizeof(arry[0]));}int _tmain(int argc, _TCHAR* argv[]){ int arry_1[100]; cout<<ARRYLEN(arry_1)<& 阅读全文

摘要：#include "stdafx.h"#include <iostream>using namespace std;class abstractClass{public: virtual void printFS() = 0; virtual int get_value() = 0;};class inheritClass:public abstractClass{public: inheritClass():m_value(0){}; virtual void printFS();//virtual int get_value();private: int m 阅读全文

摘要：#include "stdafx.h"#include <iostream>using namespace std;template<class T>class Operation{public: virtual void Algorithm() = 0;};template<class T>class Add:public Operation<T>{public: Add (T a , T b):m_a(a),m_b(b) { } void Algorithm() { cout<< (m_a + m_b)< 阅读全文

摘要：dynamic_cast 动态类型转换，必须有虚函数。#include "stdafx.h"#include <iostream>using namespace std;class Basic{public: virtual void funOfBasic(){cout<<"this is the basic's fun"<<endl;}};class Derived:public Basic{public: virtual void funOfDerived(){cout<<"this 阅读全文