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.
(save $4/month)
，更多细节参见有道翻译
Welsh Water is to pay a proposed £44.7m after the industry regulator found “serious and unacceptable” breaches in the supplier’s sewage and network services.
Computing the NOT of a single value is also easy:
'Stardew Valley's massive update lets players drink mayo, 'crit' babies, and put hats on dogs