可以使用map操作符将action对象的参数映射到新的对象中，然后使用withLatestFrom操作符将该对象与所需的参数合并，并将其传递给效用方法。

以下是一个例子：

import { ofType } from '@ngrx/effects';
import { tap, withLatestFrom, map } from 'rxjs/operators';

export class SomeEffects {
  someEffect$ = createEffect(() =>
    this.actions$.pipe(
      ofType(SomeAction),
      map((action) => {
        return { payload: action.payload }; // create new object with necessary param
      }),
      withLatestFrom(this.store.select(someSelector)), // combine the created object with the parameter
      tap(([obj, param]) => {
        // use obj.payload and param here
      })
    )
  );

  constructor(private actions$: Actions, private store: Store) {} 
}