專業化本身就是一個模板

Question

我有一個模板類，我有一些專業化的。
但下一個專業化是模板本身。你如何指定這個：

template<typename T> 
class Action 
{ 
    public: void doStuff() { std::cout << "Generic\n"; } 
} 

// A specialization for a person 
template<> 
class Action<Person> 
{ 
    public: void doStuff() { std::cout << "A Person\n";} 
} 


// I can easily specialize for vectors of a particular type. 
// But how do I change the following so that it works with all types of vector. 
// Not just `int` 
template<> 
class Action<std::vector<int> > 
{ 
    public: void doStuff() { std::cout << "A Generic Vector\n";} 
} 

Answer 1

瑣碎的偏特化？

template <typename T> 
class Action<std::vector<T>> { 
public: 
    void doStuff() { std::cout << "A Generic Vector\n"; } 
};