クラスは、2段構えで作るようだ。 s" oop.f" included /snap/gforth/15/share/gforth/0.7.9_20201105/objects.fs:416:30: warning: redefined catch /share/gforth/0.7.9_20201105/kernel/basics.fs:240:7: warning: original location oop.f:12:15: warning…