句柄类

#ifndef TEST_H_#define TEST_H_class Demo{private:class Cheshire; // 将私有的成员隐藏在Cheshire里边.这个就是句柄类把private部分隐藏起来，还可以减少重复编译。Cheshire* smile;public:void initialize();int read();void change(int);};#endif

#include <iostream>#include "test.h"using namespace std;class Demo::Cheshire{public:int i;};void Demo::initialize(){smile = new Cheshire; // smile 是一个指针，smile->i = 0;}int Demo::read(){return smile->i;}void Demo::change(int x){smile->i = x;}int main(){Demo a;a.initialize();a.change(1314);cout << a.read() << endl;return 0;}