'-------- 此程序用 DRAW 语句画出化学实验室的常用仪器 -------- SCREEN 12: CLS PSET (100, 80) '画铁架台 DRAW "d220nr5l3d2nr11l20d20" DRAW "r20e10r100f10r20" DRAW "u20l130u2l3u220l4" PSET (150, 227) '画烧杯 DRAW "r80m+5,+2g10d60g2l70h2u70h2" PSET (300, 200) '画试管 DRAW "r25nr2d120m-2,+5g4m-5,+2l3m-5,-2h4M-2,-5u120l2" PSET (450, 320) '画漏斗 DRAW "a2r100d2nl100l1g46d60g5u65h46l2u2a0"