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#include <iostream>
class A
{
public:
    A(int i)
    {
        m_A = i;
    }
    ~A()
    {

    }
    static void print()
    {
        std::cout<< "A" <<std::endl;
    }
    friend class B;
protected:
    int m_A;
private:
};
class B
{
public:
    B(int i)
    {
        m_B = i;
    }
    static void print()
    {
        std::cout<< "B" << std::endl;
    }
    void show(B b)
    {
        b.a->m_A = 3;
        b.m_B = 2;
    }
protected:
private:
    A* a;
    int m_B;
};
template<class T1, class T2>
class CTestTemplate
{
public:
    CTestTemplate(T1 t)
    {
        m_number = t;
    }
    void print()
    {
        T2::print();
        std::cout<< m_number<< std::endl;
    }
protected:
private:
    T1 m_number;
};
int main(int argc, char* argv[])
{
    CTestTemplate<int, B> testtem(3);
    testtem.print();
}

作者：jackxiang@向东博客 专注WEB应用 构架之美 --- 构架之美，在于尽态极妍 | 应用之美，在于药到病除
地址：https://jackxiang.com/post/1018/
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