分配对象到 std :: shared_ptr 。 toy 将在其范围结束时被销毁， std :: shared_ptr 将尝试删除不是新的东西。 std :: shared_ptr 必须是动态分配的对象的地址（虽然可以提供自定义删除器，但不是

Don't pass the address of a stack allocated object to a std::shared_ptr. toy will be destructed at the end of its scope and the std::shared_ptr will attempt to delete something that was not newd. The address held by a std::shared_ptr must be that of a dynamically allocated object (although a custom deleter can be provided, but that is not the case here).

要更改 std :: shared_ptr 正在管理的对象，请使用 std :: shared_ptr :: reset（） 。

To change the object that a std::shared_ptr is managing use std::shared_ptr::reset().