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// #1 模板参数个数上面的特化，

// 个数上的特化才会导致temlapte<>和 var<>中的typename的个数变化

template<typename A, typename B>

struct test {

A a;

B b;

};

template<typename B>

struct test<int, B>

{

int a;

B b;

};

// #2 模板参数类型的偏特

template <typename T>

class C {

public:

T c;

};

// 如果声明为指针 那么就调用这个, 相当于特别声明了要传递给什么样的类型的参数

template <typename T>

class C<T*> {

public:

T* c;

};

int main() {

C<int> c1;

C<int*> c2;

}