Код:
///////////// без использования with
this.createEmptyMovieClip("mMyMovieClip", 0);
this.mMyMovieClip.lineStyle(0, 0x000000, 40);
this.mMyMovieClip.moveTo(100, 100);
this.mMyMovieClip.lineTo(200, 200);
//////////// с использованием with
this.createEmptyMovieClip("mMyMovieClip", 0);
with (this.mMyMovieClip) {
lineStyle(0, 0x000000, 40);
moveTo(100, 100);
lineTo(200, 200);
}