You can see that the changes are only in E1, E2, and E3. The latter one is required just for completeness. The interesting change is in E2 where I no longer use a block local static but the static data member from E1. You still have the two options: user-declared and user-defined constructor.
impact on the words that matter.。PDF资料是该领域的重要参考
。新收录的资料是该领域的重要参考
У побережья Камчатки произошло землетрясение20:42
Drumroll please!，详情可参考新收录的资料
23:48, 9 марта 2026Россия