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        在 C++ 中实现反射机制，虽然不像其他高级语言那样直接，但可以通过宏、模板和注册系统等技术来实现一个简易的反射系统。下面是一个完整的 C++ 反射机制示例，通过自定义类注册系统和宏定义，实现类的名称、属性、方法的反射 。

#include <iostream>
#include <string>
#include <map>
#include <functional>#define REFLECTABLE \static std::map<std::string, std::function<std::string(MyClass&)>> GetProperties() { return {__PROPERTIES__}; }#define PROPERTY(name) {#name, [](MyClass& obj) -> std::string { return std::to_string(obj.name); }}class Vector3 {
public:float x, y, z;Vector3(float x = 0, float y = 0, float z = 0) : x(x), y(y), z(z) {}std::string ToString() const {return "Vector3(" + std::to_string(x) + ", " + std::to_string(y) + ", " + std::to_string(z) + ")";}
};class MyClass {
public:int myInt;std::string myString;Vector3 position;MyClass(int i, const std::string& s, Vector3 p) : myInt(i), myString(s), position(p) {}// 宏定义放在这里
#define __PROPERTIES__ \PROPERTY(myInt), \{ "myString", [](MyClass& obj) -> std::string { return obj.myString; } }, \{ "position", [](MyClass& obj) -> std::string { return obj.position.ToString(); } }REFLECTABLE
};void PrintReflectionInfo(MyClass& obj) {auto properties = MyClass::GetProperties();for (const auto& prop : properties) {std::cout << prop.first << ": " << prop.second(obj) << std::endl;}
}int main() {MyClass obj(42, "Hello", Vector3(1.0f, 2.0f, 3.0f));PrintReflectionInfo(obj);return 0;
}