理解术语和概念的含义 - RAII(资源获取是初始化)

#include <iostream>
#include <memory>

class ResourceHolder {
public:
    ResourceHolder() {
        resource = new int;
    }

    ~ResourceHolder() {
        delete resource;
    }

private:
    int *resource;
};

int main() {
    std::unique_ptr<int> resourceHolder = std::make_unique<ResourceHolder>();
    // 访问资源
    std::cout << "Resource value: " << *resourceHolder.get() << std::endl;
    // 释放资源
    resourceHolder.reset();
    return 0;
}