当对象作为参数传递时,为什么不调用自定义构造函数?[副本]

我有以下代码:

struct Entity {
    Entity() {
        std::cout << "[Entity] constructed\n";
    }

    ~Entity() {
        std::cout << "[Entity] destructed\n";
    }

    void Operation(void) {
        std::cout << "[Entity] operation\n";
    }
};

void funcCpy(Entity ent) {
    ent.Operation();
}

int main() {
    Entity e1;

    funcCpy(e1);
}

这是输出:

[Entity] constructed
[Entity] operation
[Entity] destructed
[Entity] destructed

我希望我的函数使用自定义构造函数,所以输出如下:

[Entity] constructed
[Entity] operation
[Entity] constructed
[Entity] destructed
[Entity] destructed

为什么会这样?我如何使用自定义构造函数呢?

谢谢:)