Curiously Recurring Template Pattern（CRTP）是一种C++中的高级编程技巧，也被称为"奇异递归模板模式"。这种模式看起来有点反直觉，因为它涉及到一个类将自己作为模板参数传递给自己的基类。让我为您详细解释一下这个概念。

#include <iostream>// Base class template
template <class Derived>
class Animal {
public:void makeSound() {// Call the derived class's implementationstatic_cast<Derived*>(this)->sound();}
};// Derived class
class Dog : public Animal<Dog> {
public:void sound() {std::cout << "Woof!" << std::endl;}
};// Another derived class
class Cat : public Animal<Cat> {
public:void sound() {std::cout << "Meow!" << std::endl;}
};int main() {Dog dog;Cat cat;dog.makeSound(); // Outputs: Woof!cat.makeSound(); // Outputs: Meow!return 0;
}