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by Emre Demiralp About the author: 锟斤拷锟斤拷锟斤拷斯坦锟斤拷锟斤拷锟斤拷锟斤拷锟睫诧拷锟斤拷学院锟斤拷一锟斤拷学锟斤拷锟斤拷同时也锟斤拷锟斤拷斯坦锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷学锟斤拷学锟斤拷锟斤拷系锟斤拷锟斤拷锟绞碉拷锟斤拷业墓锟斤拷锟皆敝伙拷锟斤拷锟叫┦碉拷锟斤拷业锟斤拷锟斤拷锟斤拷锟斤拷锟较低筹拷锟絃INUX锟斤拷锟斤拷趣: PovRay锟斤拷PostScript锟斤拷锟斤拷锟斤拷锟斤拷CD锟斤拷疲锟斤拷锟教ｏ拷全息锟斤拷影锟斤拷锟饺等★拷1994锟斤拷锟斤拷锟轿狶INUX锟矫伙拷锟斤拷 Content: |
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Abstract:
锟斤拷锟竭斤拷一锟斤拷锟斤拷锟斤拷 PostScripe 锟斤拷锟斤拷锟叫的诧拷锟斤拷锟斤拷栈锟斤拷锟斤拷锟侥斤拷锟斤拷细锟侥斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟侥讹拷锟藉、锟斤拷锟斤拷锟侥讹拷锟斤拷锟皆硷拷循锟斤拷锟酵猴拷亩锟斤拷澹拷锟斤拷锟斤拷锟绞撅拷锟斤拷锟较帮拷狻ｏ拷锟揭黄拷锟斤拷陆锟斤拷锟斤拷锟斤拷锟叫┫帮拷锟侥答案★拷锟斤拷锟节讹拷栈锟斤拷锟斤拷锟侥斤拷锟杰伙拷没锟叫斤拷锟斤拷锟斤拷锟斤拷锟竭斤拷锟斤拷锟皆猴拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷荨锟�
锟斤拷锟斤拷锟斤拷一系锟叫癸拷锟斤拷 PostScript 锟斤拷锟斤拷锟叫的碉拷锟斤拷篇锟斤拷锟斤拷锟斤将锟斤拷锟斤拷锟斤拷锟斤拷 PostScript 锟侥诧拷锟斤拷锟斤拷栈锟斤拷锟截碉拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷亩锟斤拷濉拷锟斤拷锟斤拷亩锟斤拷寮把拷锟斤拷秃锟侥讹拷锟斤拷锟较★拷锟斤拷锟斤拷锟斤拷图锟斤拷锟斤拷浅锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟解。锟斤拷锟叫伙拷锟斤拷锟斤拷一些锟斤拷锟斤拷说锟斤拷锟皆碉拷示锟斤拷锟斤拷锟斤拷锟节诧拷锟斤拷锟斤拷栈锟斤拷锟斤拷锟斤拷锟斤拷锟捷斤拷锟斤拷陆锟斤拷锟斤拷锟斤拷锟斤拷锟皆猴拷锟斤拷锟斤拷锟斤拷小锟�
前锟斤拷募锟狡拷锟斤拷锟斤拷峒帮拷锟斤拷锟斤拷锟秸伙拷慕峁癸拷涂锟斤拷愿谋锟斤拷锟结构锟侥诧拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟角革拷锟斤拷锟节达拷锟斤拷锟斤拷锟斤拷锟斤拷栈锟轿匡拷锟斤拷锟斤拷锟斤拷锟皆拷锟街拷猓拷锟斤拷锟斤拷锟斤拷锟节诧拷锟斤拷锟斤拷栈锟叫碉拷元锟截讹拷锟斤拷锟斤拷锟轿的★拷锟斤拷锟斤拷锟斤拷锟斤拷元锟截憋拷锟斤拷锟斤拷锟斤拷锟斤拷欠锟斤拷锟斤拷锟絤arktype锟斤拷锟斤拷栈锟斤拷锟斤拷锟斤拷 cleartomark 锟斤拷 counttomark 锟斤拷删锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷栈锟斤拷锟斤拷锟斤拷锟皆拷锟街拷锟斤拷锟斤拷锟皆拷氐摹锟斤拷锟斤拷锟斤拷锟斤拷剩锟斤拷锟斤拷锟斤拷锟斤拷锟绞碉拷旨虻シ锟斤拷椤ｏ拷锟饺伙拷獠伙拷锟轿ㄒ伙拷姆锟斤拷榉绞斤拷锟斤拷锟绞癸拷么锟斤拷锟斤拷锟斤拷卸锟斤拷元锟截的碉拷实锟斤拷锟轿拷锟斤拷堋锟斤拷锟绞碉拷灞伙拷锟斤拷锟斤拷锟斤拷锟斤拷椤憋拷锟絇ostScript 锟斤拷锟斤拷锟叫的★拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷械锟皆拷亍锟斤拷锟斤拷锟斤拷锟斤拷呓锟斤拷锟斤拷锟斤拷锟斤拷锟矫匡拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷示锟斤拷锟斤拷
[锟斤拷锟节讹拷栈锟叫达拷锟斤拷一锟斤拷锟斤拷欠锟皆拷亍锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷应锟侥诧拷锟斤拷锟斤拷 ] 没锟叫革拷锟斤拷锟斤拷锟斤拷锟酵伙拷锟斤拷 mark 锟斤拷锟斤拷锟斤拷锟斤拷锟酵拷慕锟缴拷锟斤拷锟斤拷锟斤拷诓锟斤拷锟斤拷锟秸伙拷锟斤拷锟斤拷一锟斤拷锟轿匡拷锟斤拷堑悖拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷之锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷栈锟斤拷锟斤拷锟斤拷元锟截讹拷锟斤拷锟斤拷锟斤拷为锟角碉拷锟斤拷元锟截★拷锟斤拷锟斤拷牟锟斤拷锟斤拷锟斤拷锟斤拷锟� [ 锟斤拷 mark 锟斤拷锟斤拷之锟斤拷墓锟较碉拷锟�
GS>[ pstack -marktype GS<1>2 3 mark pstack -marktype- 3 2 -marktype- GS<4>
]锟斤拷锟剿诧拷锟斤拷锟斤拷锟斤拷应锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷 [锟斤拷锟斤拷使锟矫此诧拷锟斤拷锟斤拷之前锟斤拷锟斤拷栈锟斤拷锟斤拷锟斤拷牒拷锟揭伙拷锟斤拷锟角凤拷元锟截★拷实锟斤拷锟较ｏ拷锟剿诧拷锟斤拷锟斤拷锟斤拷锟斤拷为锟斤拷锟斤拷锟斤拷慕锟斤拷锟斤拷锟街撅拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷拇锟斤拷锟斤拷锟斤拷锟斤拷诮锟轿诧拷锟斤拷锟斤拷应锟节匡拷头锟斤拷PostScript 锟斤拷 ] 锟斤拷锟斤拷锟斤拷锟斤拷锟秸皇憋拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷应锟侥匡拷始锟斤拷锟斤拷锟斤拷 [锟斤拷锟斤拷锟� [ 锟斤拷锟斤拷锟节ｏ拷PostScript 锟斤拷锟斤拷锟截筹拷锟斤拷锟斤拷息锟斤拷取锟斤拷锟矫诧拷锟斤拷锟斤拷锟斤拷锟斤拷锟皆拷亟锟斤拷锟斤拷锟� [ 锟斤拷锟斤拷锟斤拷锟斤拷锟秸伙拷锟斤拷锟矫达拷锟斤拷锟斤拷锟揭伙拷锟斤拷锟斤拷锟斤拷椴拷锟轿伙拷锟斤拷锟绞碉拷澹╯ingle entitiy锟斤拷锟斤拷锟斤拷锟节诧拷锟斤拷锟斤拷栈锟叫ｏ拷锟街达拷谋锟角凤拷元锟截撅拷转锟斤拷筛锟斤拷锟斤拷锟斤拷一锟斤拷锟街ｏ拷锟斤拷顺锟斤拷锟斤拷锟揭伙拷锟斤拷锟揭伙拷锟斤拷锟斤拷偷锟皆拷兀锟斤拷锟斤拷肟达拷锟斤拷锟斤拷示锟斤拷锟斤拷
GS>[ pstack -marktype- GS<1>] pstack [] GS<1>
锟斤拷锟较的诧拷锟斤拷锟襟，诧拷锟斤拷锟斤拷栈锟斤拷只锟斤拷锟斤拷一锟斤拷元锟截★拷锟斤拷锟斤拷锟斤拷锟介。一锟斤拷锟角匡拷锟斤拷锟斤拷锟斤拷锟斤拷锟� [ 锟斤拷 ] 之锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷元锟斤拷锟斤拷直锟接达拷锟斤拷锟斤拷锟节达拷锟斤拷时锟斤拷锟斤拷锟斤拷些锟斤拷锟斤拷 [锟斤拷] 锟斤拷锟斤拷锟斤拷元锟截讹拷要同时锟斤拷锟诫。示锟斤拷锟斤拷锟铰ｏ拷
GS>[ 1 2 3 ] pstack [1 2 3] GS<1>
锟皆讹拷锟阶硷拷锟斤拷锟斤拷锟介被锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷实锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷栈锟叫★拷
锟斤拷锟角伙拷锟斤拷锟皆达拷锟斤拷一锟斤拷指锟斤拷锟斤拷元锟截革拷锟斤拷锟斤拷锟斤拷指锟斤拷每锟斤拷元锟斤拷锟斤拷锟捷碉拷锟斤拷锟介。锟斤拷锟斤拷锟斤拷锟绞撅拷锟斤拷锟斤拷锟斤拷锟揭伙拷锟斤拷锟斤拷锟斤拷锟斤拷锟� null 元锟截碉拷锟斤拷锟介，锟斤拷锟斤拷 null 锟斤拷锟斤拷什么也没锟叫ｏ拷
GS>[ null null ] pstack [null null] GS<1>
array锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷要锟斤拷一锟斤拷锟斤拷锟轿诧拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷式为锟斤拷n array锟斤拷锟斤拷锟叫此诧拷锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷 n 锟斤拷 null 元锟截碉拷锟斤拷锟介将锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷同 [锟斤拷]锟斤拷锟节讹拷锟斤拷锟斤拷锟斤拷时锟侥癸拷锟斤拷锟斤拷同锟斤拷锟斤拷锟界：3 array 锟斤拷 [ null null null ] 锟斤拷一锟斤拷锟侥★拷锟斤拷锟斤拷锟斤拷锟斤拷锟侥诧拷锟斤拷锟斤拷位锟节诧拷锟斤拷锟斤拷栈锟斤拷锟筋顶锟剿★拷锟斤拷锟斤拷诟锟斤拷锟斤拷锟斤拷写锟斤拷胁锟斤拷锟斤拷锟斤拷锟剿诧拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟秸伙拷胁锟斤拷锟轿拷疃ワ拷说锟皆拷亍锟斤拷锟斤拷没锟叫诧拷锟斤拷锟斤拷锟斤拷锟斤拷锟筋将锟斤拷锟捷诧拷锟斤拷锟斤拷栈锟叫碉拷锟筋顶锟剿碉拷元锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷为锟斤拷锟斤拷锟斤拷硕锟斤拷锟皆拷锟轿拷锟斤拷危锟斤拷锟斤拷锟轿拷锟斤拷锟斤拷锟侥诧拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷示锟斤拷锟斤拷锟捷筹拷锟斤拷锟斤拷息锟斤拷
length锟斤拷锟剿诧拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷元锟截的革拷锟斤拷锟斤拷null 元锟斤拷也锟斤拷锟斤拷锟斤拷锟节★拷锟矫诧拷锟斤拷锟斤拷锟斤拷要一锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟街伙拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟秸伙拷械锟斤拷疃ワ拷锟皆拷亍锟斤拷诖瞬锟斤拷锟斤拷锟斤拷之锟襟，该诧拷锟斤拷锟斤拷锟接诧拷锟斤拷锟斤拷栈锟斤拷锟斤拷失锟斤拷锟斤拷耍锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷之前锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟矫达拷锟斤拷锟斤拷锟斤拷锟斤拷锟街达拷锟街拷锟斤拷锟斤拷锟斤拷锟斤拷锟皆拷馗锟斤拷锟斤拷锟斤拷锟轿拷锟斤拷锟斤拷锟秸伙拷锟揭伙拷锟皆拷胤锟斤拷锟斤拷锟斤拷疃ワ拷恕锟斤拷锟斤拷纾�
GS>[ 1 2 3 4 5 ] length pstack 5 GS<1>
锟斤拷锟矫伙拷锟矫伙拷懈锟斤拷锟� length 锟斤拷锟斤拷锟斤拷锟侥诧拷锟斤拷锟斤拷锟斤拷么锟斤拷锟斤拷锟角把诧拷锟斤拷锟斤拷栈锟斤拷锟筋顶锟斤拷元锟截ｏ拷应锟斤拷锟角革拷锟斤拷锟介）锟斤拷为锟斤拷锟斤拷执锟斤拷 length 锟斤拷锟斤拷锟斤拷锟窖革拷锟斤拷锟斤拷元锟斤拷锟芥换为锟斤拷锟斤拷锟斤拷锟皆拷馗锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟绞撅拷锟�
GS<1>pstack [1 2 3 6 7] GS<1>length pstack 5 GS<1>
锟斤拷锟斤拷锟斤拷锟斤拷锟节诧拷锟斤拷锟斤拷栈锟斤拷前锟斤拷锟筋顶锟斤拷元锟截诧拷锟斤拷锟斤拷锟斤拷锟斤拷锟绞撅拷锟斤拷锟斤拷锟较拷锟�
get锟斤拷锟剿诧拷锟斤拷锟斤拷锟斤拷要锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟街憋拷为锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷貌锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟饺★拷锟街革拷锟斤拷锟皆拷兀锟斤拷锟皆拷氐锟轿伙拷锟斤拷傻诙锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷诙锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟街革拷锟轿伙拷玫牟锟斤拷锟街伙拷锟斤拷锟斤拷锟饺伙拷锟斤拷锟斤拷锟斤拷锟剿碉拷锟斤拷憧硷拷锟斤拷锟斤拷锟斤拷锟斤拷锟绞碉拷洗斯锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷械牟锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟叫╋拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟狡筹拷锟斤拷锟斤拷锟斤拷栈锟斤拷锟斤拷锟斤拷锟角碉拷锟斤拷锟酵憋拷锟斤拷为锟斤拷然锟斤拷锟斤拷锟斤拷一锟斤拷锟皆后将诧拷锟斤拷强锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷一锟斤拷示锟斤拷锟斤拷
GS[1 6 3 0 9] 0 get pstack 1 GS<1>
put锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷要锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟介、位锟斤拷锟斤拷锟斤拷锟酵诧拷锟斤拷元锟截★拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟叫诧拷锟斤拷元锟截★拷执锟叫的癸拷锟斤拷锟角ｏ拷锟接碉拷一锟斤拷锟斤拷锟斤拷锟斤拷取锟斤拷锟斤拷锟介，然锟斤拷位锟斤拷锟节讹拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷位锟矫ｏ拷锟斤拷锟矫碉拷锟斤拷锟斤拷锟斤拷锟斤拷锟芥换锟斤拷位锟矫碉拷元锟截★拷然锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷椴伙拷锟斤拷锟斤拷锟节诧拷锟斤拷锟斤拷栈锟叫★拷锟斤拷耍锟轿拷锟斤拷锟饺凤拷锟绞癸拷锟� put 锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟角匡拷锟皆讹拷锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟� PostScript 锟斤拷锟斤拷锟斤拷锟� key 锟斤拷锟斤拷然锟斤拷锟斤拷应锟侥诧拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷辖锟斤拷校锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷栈锟斤拷锟斤拷锟斤拷锟斤拷示锟斤拷锟斤拷锟斤拷锟诫看锟斤拷锟斤拷锟绞撅拷锟斤拷锟�
GS>[1 2 3] 0 8 put GS>
锟斤拷锟斤拷锟斤拷栈锟斤拷锟斤拷锟绞裁匆裁伙拷蟹锟斤拷锟斤拷锟饺达拷锟矫伙拷谐锟斤拷锟斤拷锟较拷锟斤拷锟绞碉拷希锟絧ut 锟斤拷锟斤拷锟窖撅拷锟斤拷锟斤拷耍锟斤拷锟斤拷墙锟斤拷锟斤拷没锟叫达拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷栈锟斤。锟斤拷锟斤拷锟矫碉拷锟矫斤拷锟斤拷锟斤拷锟斤拷强锟斤拷园锟斤拷锟斤拷锟斤拷碌姆锟斤拷锟斤拷锟斤拷锟斤拷锟�
GS>/ar [ 1 2 3 ] def GS>ar 0 8 put GS>ar pstack [8 2 3] GS<1>
锟斤拷锟斤，锟斤拷一锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟� PostScript 锟斤拷锟斤拷说锟斤拷锟斤拷 key 锟斤拷锟侥讹拷锟藉，锟斤拷锟斤拷锟斤拷锟斤拷 ar锟斤拷锟节讹拷锟斤拷锟斤拷 put 锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟筋）锟斤拷锟斤拷锟斤拷牡锟揭伙拷锟皆拷兀锟斤拷锟轿伙拷锟斤拷锟斤拷锟斤拷锟斤拷锟� 0 锟斤拷指锟斤拷锟侥ｏ拷锟芥换锟斤拷 8锟斤拷之锟斤拷锟� ar pstack 锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷 ar 锟斤拷值锟斤拷锟诫到锟斤拷锟斤拷锟斤拷栈锟叫诧拷锟斤拷示锟斤拷锟叫碉拷锟斤拷锟捷★拷锟斤拷锟斤拷应锟斤拷注锟解本锟侥猴拷锟斤拷墓锟斤拷诒锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟捷★拷锟斤拷锟解，锟节猴拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤还锟斤拷锟芥及锟斤拷锟绞典（dictionaries锟斤拷锟斤拷锟绞碉拷锟秸伙拷锟絛ictionary stack锟斤拷锟斤拷
getinterval锟斤拷锟剿诧拷锟斤拷锟斤拷锟斤拷锟节达拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷椋╯ubarray锟斤拷锟斤拷锟斤拷锟斤拷要锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟街憋拷锟角ｏ拷锟斤拷锟介、锟斤拷锟斤拷锟斤拷目锟绞嘉伙拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟皆拷馗锟斤拷锟斤拷锟斤拷锟街达拷薪锟斤拷锟角斤拷锟斤拷锟介（锟缴碉拷一锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟叫达拷指锟斤拷位锟矫ｏ拷锟缴第讹拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷始一锟斤拷锟斤拷目锟斤拷锟缴碉拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷元锟截匡拷锟斤拷锟斤拷一锟斤拷锟铰碉拷锟斤拷锟斤拷锟斤拷锟芥。锟斤拷锟斤拷锟斤拷锟斤拷榻拷锟斤拷锟斤拷氲斤拷锟斤拷锟斤拷锟秸伙拷小锟斤拷锟斤拷纾�
GS>[1 2 3 4 5 6 7 8 9] 2 3 getinterval pstack [3 4 5] 2GS<1>
putinterval锟斤拷锟矫革拷锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷锟芥换锟斤拷一锟斤拷指锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷椤ｏ拷锟斤拷锟揭拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟揭伙拷锟斤拷潜锟斤拷婊伙拷锟斤拷椋伙拷诙锟斤拷锟斤拷锟揭伙拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟街甘撅拷锟斤拷婊伙拷锟斤拷锟斤拷锟斤拷诒锟斤拷婊伙拷锟斤拷锟斤拷械锟轿伙拷茫锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷婊伙拷锟斤拷锟斤拷锟斤拷椤ｏ拷锟斤拷锟斤拷锟斤拷锟� put 锟斤拷锟斤拷浅锟斤拷锟斤拷疲锟斤拷锟揭诧拷锟斤拷呀锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟秸伙拷小锟斤拷锟斤拷锟斤拷锟斤拷示锟斤拷锟斤拷锟皆匡拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷示锟斤拷锟斤拷锟斤拷
GS>/ar [1 2 3 4 5 6 7 8 9] def GS>ar 3 [0 0 0] putinterval GS>ar pstack [1 2 3 0 0 0 7 8 9] GS<1>
aload锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷为锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷元锟斤拷锟斤拷为锟斤拷实锟藉拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷栈锟叫★拷执锟叫斤拷锟斤拷锟襟，达拷锟斤拷锟斤拷锟轿拷锟斤拷锟斤拷锟秸伙拷械牡锟揭伙拷锟皆拷亍锟斤拷锟斤拷锟斤拷妫�
GS>[1 2 3] aload pstack [1 2 3] 3 2 1 GS<4>
astore锟斤拷锟矫革拷锟斤拷锟斤拷一锟斤拷元锟斤拷锟斤拷锟斤拷锟斤拷锟芥换锟节讹拷锟斤拷锟斤拷锟斤拷指锟斤拷锟斤拷锟斤拷锟斤拷锟叫碉拷锟斤拷锟斤拷元锟截ｏ拷锟斤拷锟竭碉拷元锟截革拷锟斤拷锟斤拷取锟斤拷锟斤拷为锟芥换元锟斤拷锟斤拷傻锟斤拷碌锟斤拷锟斤拷椤�
GS>1 2 3 [null null null] astore pstack [1 2 3] GS<1>
copy锟斤拷锟斤拷锟斤拷锟缴碉拷一锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟介到锟节讹拷锟斤拷锟斤拷锟斤拷锟斤拷指锟斤拷锟斤拷锟斤拷锟叫从碉拷一锟斤拷元锟截匡拷始锟斤拷锟斤拷锟斤拷锟介。锟斤拷示锟侥斤拷锟斤拷潜锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟角第讹拷锟斤拷锟斤拷锟斤拷指锟斤拷锟斤拷锟斤拷锟介。锟斤拷锟较ｏ拷锟斤拷锟斤拷锟斤拷诙锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷式锟斤拷锟皆讹拷锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷示锟斤拷锟斤拷
GS>[1 2 3] [4 5 6 7 8] copy pstack [1 2 3] GS<1>/ar [4 5 6 7 8] def GS<1>[1 2 3] ar copy GS<2>ar pstack [1 2 3 7 8] [1 2 3] [1 2 3] GS<3>
锟斤拷锟斤拷元锟截诧拷一锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷也锟斤拷锟斤拷锟斤拷为锟斤拷锟斤拷锟皆拷亍锟斤拷锟斤拷锟斤拷味锟斤拷锟斤拷 PostScript 锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟角讹拷住锟斤拷锟斤拷锟斤拷锟斤拷使锟斤拷锟斤拷锟斤拷锟斤拷途锟斤拷锟疥定锟斤拷锟轿拷锟斤拷堋锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷源锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷维锟斤拷锟叫★拷目前锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷狻�
锟斤拷锟叫的憋拷锟斤拷锟斤拷远锟斤拷锟斤拷远锟斤拷锟斤拷锟斤拷锟斤拷使锟矫憋拷锟斤拷锟斤拷锟斤拷锟斤拷锟捷匡拷锟皆诧拷锟截匡拷锟斤拷锟斤拷锟斤拷锟斤拷锟节达拷锟叫碉拷位锟矫★拷锟斤拷取锟节达拷锟斤拷械锟斤拷锟斤拷菘锟斤拷锟酵拷锟斤拷锟斤拷锟斤拷锟街凤拷锟斤拷吒锟斤拷锟斤拷锟斤拷锟斤拷莸谋锟斤拷锟斤拷锟斤拷锟絢ey锟斤拷锟斤拷实锟街★拷前一锟街凤拷锟斤拷锟斤拷锟斤拷 C 锟斤拷锟斤拷使锟斤拷指锟诫。锟斤拷锟斤拷悴伙拷锟绞癸拷玫锟街凤拷锟矫达拷锟揭伙拷锟绞癸拷帽锟斤拷锟斤拷锟斤拷锟絢ey锟斤拷锟侥凤拷锟斤拷锟斤拷锟斤拷锟斤拷愎伙拷恕锟饺伙拷锟斤拷锟斤拷锟斤拷缘谋锟斤拷锟斤拷锟斤拷锟斤拷呓锟斤拷锟斤拷锟斤拷锟斤拷锟揭拷锟斤拷锟斤拷诖锟侥达拷取锟斤拷锟斤拷锟斤拷锟斤拷夭锟斤拷锟斤拷锟斤拷纱耍锟斤拷锟脚匡拷锟皆讹拷锟斤拷一锟斤拷锟街伙拷锟斤拷一锟斤拷英锟斤拷锟街凤拷锟斤拷锟斤拷然锟斤拷锟斤拷锟斤拷实锟藉赋值锟斤拷锟斤拷实锟较ｏ拷锟斤拷锟斤拷锟斤拷些锟斤拷锟斤拷锟斤拷锟斤拷为锟斤拷锟斤拷使锟斤拷锟竭凤拷锟斤拷母锟斤拷弑锟斤拷锟斤拷锟斤拷锟诫定锟斤拷什么锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷值锟角讹拷锟劫★拷锟斤拷锟斤拷锟斤拷锟斤拷锟竭斤拷锟斤拷锟斤拷锟斤拷为锟矫伙拷锟侥憋拷锟斤拷指锟斤拷一锟斤拷锟节达拷尾锟斤拷锟斤拷锟斤拷械墓锟斤拷诟帽锟斤拷锟斤拷锟斤拷锟较拷锟斤拷锟轿拷锟斤拷荼锟斤拷娴斤拷舜锟斤拷锟絇ostScript 也锟斤拷锟斤拷锟狡的结构锟斤拷PostScript 锟侥词碉拷锟斤拷锟斤拷吮锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟截碉拷一些锟斤拷锟藉。锟斤拷 PostScript 锟斤拷锟斤拷锟叫ｏ拷锟绞典（dictionary锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷 key-value 锟斤拷锟斤拷桑锟斤拷缘牡锟揭伙拷锟皆拷乇锟斤拷锟斤拷锟斤拷锟斤拷郑锟絢ey锟斤拷锟斤拷锟节讹拷锟斤拷锟斤拷锟斤拷锟斤拷值(value)锟斤拷锟斤拷锟界，add 锟斤拷一锟斤拷锟斤拷锟街ｏ拷key锟斤拷锟斤拷锟侥癸拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟接凤拷锟斤拷value锟斤拷锟斤拷锟斤拷为 add 锟斤拷锟斤拷锟斤拷锟斤拷 systemdict 锟斤拷锟较低筹拷实锟斤拷校锟斤拷锟斤拷 PostScript 锟斤拷锟斤拷知锟斤拷 add 锟侥猴拷锟藉。锟斤拷锟矫伙拷锟斤拷锟斤拷 1 2 add pstack 锟斤拷锟斤拷锟斤拷锟绞憋拷锟斤拷峥达拷锟斤拷锟斤拷 3锟斤拷锟斤拷锟斤拷锟斤拷为 PostScript 锟饺诧拷锟斤拷前锟斤拷锟斤拷锟斤拷然锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷些锟斤拷锟斤拷锟斤拷锟斤拷锟饺诧拷锟斤拷 1 然锟斤拷锟斤拷 2 锟斤拷aad锟斤拷前锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷栈锟叫★拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷为锟街凤拷锟斤拷锟斤拷锟斤拷锟叫匡拷锟斤拷锟角革拷 key 锟斤拷锟街★拷锟斤拷锟斤拷 PostScript 锟姐开始锟斤拷锟斤拷锟斤拷锟街碉拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟街★拷锟斤拷锟斤拷业锟斤拷锟斤拷锟斤拷应锟侥讹拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷 add 锟斤拷锟斤拷锟斤拷系统锟绞碉拷 systemdict 锟叫ｏ拷PostScript 锟斤拷锟皆伙拷枚锟接︼拷锟斤拷锟斤拷锟斤拷锟街ｏ拷key锟斤拷锟侥讹拷锟斤拷锟斤拷value锟斤拷锟斤拷然锟斤拷顺锟斤拷执锟斤拷锟斤拷锟斤拷锟筋顶锟斤拷元锟截筹拷栈锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟角碉拷锟斤拷锟斤拷锟酵ｏ拷锟劫把斤拷锟窖癸拷锟斤拷锟斤拷锟斤拷栈锟斤拷使锟斤拷锟轿拷锟斤拷锟皆拷亍锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷剩锟铰碉拷锟街凤拷锟斤拷 pstack 锟斤拷系统锟绞碉拷锟叫碉拷锟斤拷思锟斤拷锟角ｏ拷锟斤拷锟斤拷示锟斤拷前锟斤拷锟斤拷锟斤拷栈锟叫碉拷锟斤拷锟捷碉拷锟斤拷准锟斤拷锟斤拷璞革拷小锟斤拷锟斤拷锟斤拷强锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷也锟斤拷锟斤拷锟剿★拷锟斤拷一锟斤拷锟斤拷锟斤拷锟角匡拷锟皆癸拷锟斤拷母锟斤拷锟斤拷锟斤拷锟揭伙拷锟斤拷锟斤拷锟斤拷锟斤拷锟筋：1 2 dad pstack锟斤拷锟斤拷锟斤拷锟斤拷锟结报锟斤拷锟� PostScript 锟斤拷没锟叫达拷 key 锟斤拷锟街讹拷锟斤拷某锟斤拷锟斤拷锟较拷锟�
锟斤拷然锟斤拷PostScript 没锟叫帮拷锟斤拷锟斤拷锟睫讹拷锟斤拷锟斤拷些锟窖达拷锟斤拷锟斤拷系统锟绞碉拷锟叫的讹拷锟斤拷锟斤。锟矫伙拷锟斤拷锟皆帮拷一些锟斤拷锟教伙拷锟斤拷锟斤拷锟斤拷锟绞讹拷锟斤拷锟斤拷锟皆硷拷锟斤拷锟斤拷锟筋。锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷识锟斤拷么锟斤拷锟角就匡拷锟皆碉拷锟矫革拷锟斤拷锟街伙拷锟斤拷 key 锟斤拷为锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷PostScript 锟斤拷锟斤。锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷目锟斤拷锟斤拷实锟斤拷锟斤拷锟斤拷锟斤拷锟矫憋拷锟斤拷锟斤拷缘幕氐锟斤拷锟斤拷锟斤拷诒锟斤拷锟斤拷亩锟斤拷锟斤拷锟斤拷潜锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟绞斤拷锟�/x value def锟斤拷锟斤拷锟斤拷 value 锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟介、锟街凤拷锟斤拷锟斤拷 PostScript 锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟角匡拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷 /x 12 def 锟斤拷执锟斤拷锟斤拷锟斤拷锟斤拷诮锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟絇ostScript 锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷取锟斤拷 /x锟斤拷12锟斤拷 def 锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷斜锟斤拷 / 锟斤拷始锟侥讹拷锟襟将憋拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷 key 锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟杰讹拷锟杰憋拷锟斤拷锟诫到锟斤拷锟斤拷锟斤拷栈锟斤拷锟绞碉拷锟秸伙拷卸锟斤拷锟斤拷乜锟斤拷锟斤拷锟斤拷锟斤拷欠锟斤拷锟斤拷锟节词碉拷锟叫★拷def 锟斤拷锟斤拷锟斤拷 PostScript 系统锟绞碉拷锟叫碉拷一锟斤拷 key-value 锟皆★拷锟斤拷锟斤拷要锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷一锟斤拷锟角讹拷锟斤拷锟斤拷锟� key 锟斤拷锟街ｏ拷锟节讹拷锟斤拷锟角斤拷锟斤拷锟斤拷锟斤拷锟斤拷一锟斤拷 key 锟斤拷值锟斤拷锟斤拷耍锟斤拷锟斤拷锟斤拷锟� /x 12 def 执锟斤拷之锟斤拷 PostScript 锟结创锟斤拷一锟斤拷 key-value 锟皆诧拷锟斤拷锟斤拷锟斤拷锟芥到指锟斤拷锟斤拷缺省锟绞典—锟斤拷 current 锟绞碉拷锟叫★拷值锟斤拷注锟斤拷锟斤拷牵锟斤拷锟� key-value 锟皆斤拷锟斤拷为 current 锟绞碉拷锟秸伙拷锟斤拷疃ワ拷锟皆拷亍锟斤拷锟揭伙拷锟斤拷院蠼锟斤拷玫锟斤拷锟斤拷锟斤拷耍锟斤拷锟斤拷锟斤拷锟斤拷峄帮拷锟斤拷锟斤拷锟絇ostScript 锟斤拷锟斤拷 x 锟斤拷锟斤拷 12 锟斤拷锟斤拷锟斤拷
锟斤拷锟斤拷锟斤拷锟斤拷说锟斤拷锟轿猴拷锟斤拷斜锟斤拷 / 锟斤拷头锟斤拷锟街凤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷 key锟斤拷然锟斤拷锟斤拷没锟斤拷潜锟斤拷锟绞癸拷锟斤拷锟叫╋拷锟侥革拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟街凤拷锟斤拷锟斤拷锟津，碉拷锟斤拷斜锟斤拷锟斤拷锟斤拷锟侥憋拷锟斤拷锟脚憋拷锟斤拷锟斤拷锟� key 时锟斤拷锟斤拷锟斤拷锟斤拷锟揭恍╋拷薹锟皆わ拷系慕锟斤拷锟斤拷锟斤拷为锟斤拷些锟街凤拷锟斤拷 PostScript 锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷谩锟絢ey 锟斤拷锟街碉拷锟街凤拷锟斤拷锟斤拷锟矫伙拷锟斤拷使锟矫的斤拷锟斤拷锟斤拷锟斤拷锟狡★拷锟斤拷实锟较ｏ拷锟斤拷锟斤拷锟斤拷锟斤拷锟较百革拷锟街凤拷锟斤拷锟斤拷 key 锟斤拷锟街达拷锟节ｏ拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟街匡拷锟斤拷锟斤拷锟角很诧拷锟斤拷锟斤拷摹锟絇ostScript 锟皆达拷小写锟斤拷锟斤拷锟斤拷一锟截碉拷锟斤拷没锟斤拷锟斤拷锟斤拷撕芏喾斤拷恪ｏ拷锟斤拷校锟斤拷没锟斤拷锟斤拷锟斤拷 key 锟斤拷锟街诧拷要锟斤拷 PostScript 锟叫碉拷系统 key 锟斤拷锟斤拷锟斤拷同锟斤拷锟斤拷锟斤拷锟铰讹拷锟斤拷锟� key 锟斤拷锟结覆锟角碉拷系统锟斤拷锟筋。锟斤拷锟角猴拷锟斤拷锟斤拷锟斤拷锟皆斤拷摹锟斤拷锟斤拷纾拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷 /add 13 def 锟斤拷锟斤拷锟斤拷睿拷锟矫� add 锟斤拷锟斤拷转锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷同时锟斤拷锟斤拷锟斤拷峄帮拷锟斤拷碌牟锟斤拷锟斤拷锟� PostScript 锟侥加凤拷锟斤拷锟杰斤拷失去锟斤拷锟斤拷锟斤拷篇锟斤拷锟斤拷锟睫ｏ拷锟斤拷锟叫很讹拷锟解方锟斤拷锟斤拷锟斤拷萁锟斤拷诺锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷薪锟斤拷堋锟�
PostScript 锟斤拷循锟斤拷锟斤拷loops锟斤拷锟斤拷一锟斤拷实锟斤拷锟截革拷锟斤拷锟斤拷慕峁癸拷锟斤拷锟斤拷峁╋拷锟揭伙拷锟街达拷写锟斤拷锟斤拷锟酵拷锟斤拷筒锟斤拷锟斤拷姆锟斤拷锟斤拷锟斤拷锟叫╋拷锟斤拷锟斤拷锟斤拷锟侥匡拷锟斤拷锟斤拷欠浅锟斤拷薮锟侥★拷全锟斤拷锟斤拷些锟截革拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷实锟街★拷锟斤拷锟斤拷锟斤拷锟斤拷萁锟斤拷婕帮拷锟窖拷锟斤拷锟斤拷锟斤拷锟斤拷睢�
repeat锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷要锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷指示循锟斤拷锟侥达拷锟斤拷锟斤拷锟节讹拷锟斤拷锟斤拷锟斤拷锟斤拷锟缴块定锟斤拷锟� { 锟斤拷 } 锟斤拷锟斤拷锟斤拷锟揭伙拷锟� PostScript 锟斤拷锟斤拷椤ｏ拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷陌锟斤拷锟揭幌碉拷锟街革拷锟斤拷锟斤拷锟斤拷锟筋。锟斤拷锟斤拷锟斤拷锟绞斤拷锟斤拷纾簄 { ... } repeat锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷瞬锟斤拷锟斤拷锟絇ostScript 锟斤拷锟窖碉拷一锟斤拷锟斤拷锟斤拷锟斤拷锟诫到锟斤拷锟斤拷锟斤拷栈锟叫★拷然锟斤拷锟劫讹拷取锟斤拷锟斤拷锟斤拷 { ... } 锟斤拷锟斤拷锟街革拷睢ｏ拷锟斤拷PostScript 锟斤拷系统锟绞碉拷锟斤拷锟斤拷锟斤拷业锟� repeat 锟斤拷锟斤拷始执锟斤拷锟斤拷锟侥讹拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟角第讹拷锟斤拷锟斤拷锟斤拷指锟斤拷锟侥讹拷锟斤拷锟介被锟截革拷执锟斤拷锟斤拷 n 锟轿★拷锟斤拷锟斤拷锟绞撅拷锟斤拷锟斤拷锟斤拷锟斤拷锟较革拷锟剿碉拷锟斤拷锟�
GS>3 {1} repeat
1
1
1
GS<3>
锟斤拷锟斤拷锟筋将锟斤拷锟斤拷锟斤拷锟斤拷值 1 锟斤拷锟诫到锟剿诧拷锟斤拷锟斤拷栈锟斤拷锟芥。锟斤拷实锟较ｏ拷锟斤拷锟斤拷某锟斤拷锟角筹拷锟津单ｏ拷锟斤拷锟斤拷锟角诧拷锟斤拷 1 锟斤拷锟斤拷锟斤拷锟斤拷锟芥还锟斤拷一锟斤拷锟斤拷微锟斤拷锟接碉拷某锟斤拷锟�
GS>1 5 {1 add} repeat pstack
6
GS<1>
锟斤拷锟斤拷锟斤拷锟斤拷校锟斤拷锟揭伙拷锟斤拷锟� 1 锟饺斤拷锟诫到锟斤拷锟斤拷锟斤拷栈锟叫ｏ拷然锟斤拷锟斤拷锟斤拷 { 1 add } 锟斤拷执锟斤拷 5 锟轿★拷锟斤拷 5 锟轿诧拷锟斤拷锟斤拷锟斤拷锟斤拷锟侥★拷锟斤拷一锟斤拷锟斤拷执锟斤拷 1 add 锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷 add 锟斤拷要锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟节讹拷锟斤拷锟斤拷锟斤拷锟窖撅拷锟斤拷锟斤拷锟剿ｏ拷锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷也锟斤拷锟斤拷 PostScript 锟斤拷锟斤拷锟叫的诧拷锟斤拷锟斤拷锟斤拷锟角从诧拷锟斤拷锟斤拷栈锟斤拷取锟斤拷锟侥★拷锟斤拷耍锟斤拷锟揭伙拷锟窖拷锟绞碉拷锟街达拷械锟斤拷锟� 1 1 add 锟斤拷锟斤拷锟斤拷锟斤拷一锟斤拷锟侥斤拷锟斤拷墙锟斤拷锟斤拷锟斤拷锟秸伙拷锟轿ㄒ伙拷锟皆拷锟� 1 锟芥换锟斤拷锟斤拷 2锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟节讹拷锟斤拷执锟斤拷 2 1 add 锟斤拷锟斤拷锟窖讹拷栈锟叫碉拷唯一元锟斤拷锟芥换锟斤拷锟斤拷 3锟斤拷锟斤拷锟斤拷锟斤拷疲锟斤拷锟斤拷碌锟斤拷锟斤拷锟斤拷直锟斤拷牵锟�3 1 add锟斤拷4 1 add 锟斤拷 5 1 add锟斤拷锟斤拷锟斤拷锟节达拷 repeat 锟斤拷锟斤拷执锟斤拷之锟斤拷锟斤拷锟斤拷锟秸伙拷锟斤拷锟揭伙拷锟轿ㄒ伙拷锟皆拷亍锟斤拷锟�6锟斤拷
for锟斤拷锟斤拷锟斤拷锟斤拷使锟斤拷一锟斤拷锟斤拷锟轿憋拷锟斤拷锟斤拷锟斤拷锟狡革拷锟斤拷锟斤拷锟斤拷锟斤拷循锟斤拷锟斤拷锟斤拷锟斤拷锟矫匡拷锟狡憋拷锟斤拷锟接筹拷始值锟斤拷始每执锟斤拷一锟斤拷循锟斤拷锟斤拷锟斤拷奂锟揭伙拷危锟街憋拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷慕锟街碉拷锟斤拷锟斤拷源锟斤拷锟斤拷锟斤拷锟揭拷母锟斤拷锟斤拷锟斤拷锟斤拷锟角帮拷锟斤拷锟斤拷直锟斤拷牵锟斤拷锟绞贾碉拷锟斤拷锟斤拷锟斤拷徒锟街碉拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷攵硷拷锟斤拷锟街抵碉拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟绞拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷母锟斤拷锟斤拷锟斤拷锟揭伙拷纬锟斤拷颍锟斤拷锟斤拷锟揭伙拷锟斤拷锟斤拷锟揭诧拷锟斤拷锟斤拷锟斤拷锟� { 锟斤拷 } 锟斤拷锟斤拷锟斤拷锟揭伙拷锟斤拷锟斤拷锟介。锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟绞轿拷锟絀nitial Increment Limit Procedure for锟斤拷锟斤拷锟斤拷锟斤拷执锟斤拷时锟斤拷PostScript 锟饺达拷锟斤拷一锟斤拷锟斤拷时锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷 PostScript 锟斤拷锟斤拷锟斤拷说锟斤拷锟角匡拷锟狡憋拷锟斤拷锟斤拷锟斤拷锟窖筹拷始值 Initial 锟斤拷锟斤拷锟斤拷锟斤拷同时锟斤拷值锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟秸伙拷小锟斤拷锟揭诧拷锟斤拷岜� Procedure 锟斤拷锟斤拷锟叫碉拷某锟斤拷锟斤拷锟斤拷使锟矫ｏ拷锟斤拷锟斤拷锟绞癸拷茫锟斤拷锟斤拷锟斤拷锟斤拷瞥锟斤拷锟斤拷锟斤拷锟秸伙拷锟斤拷锟斤拷锟斤拷锟斤拷锟揭恢憋拷锟斤拷锟斤拷诙锟秸伙拷小锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟绞贾碉拷锟窖拷锟斤拷锟� Procedure 锟斤拷锟斤拷执锟斤拷一锟轿★拷锟斤拷锟斤拷锟脚硷拷锟斤拷锟斤拷锟斤拷锟桔硷拷一锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷 Increment 锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷值锟斤拷锟斤拷锟窖拷锟街达拷锟斤拷锟饺ワ拷锟街憋拷锟斤拷锟斤拷雍锟侥硷拷锟斤拷锟斤拷锟斤拷值锟斤拷锟斤拷锟剿斤拷值 Limit锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷思锟斤拷锟角诧拷锟节筹拷始值 Initial 锟酵斤拷值 Limit 锟斤拷确锟斤拷锟斤拷锟斤拷锟斤拷锟剿★拷锟斤拷锟斤拷锟斤拷锟� Increment 锟斤拷锟斤拷锟侥ｏ拷锟斤拷么 for 锟斤拷锟筋将锟节硷拷锟斤拷锟斤拷锟斤拷锟斤拷锟节斤拷值 Limit 时停止锟斤拷锟斤拷之锟斤拷锟斤拷锟斤拷锟斤拷 Increment 为锟斤拷时锟斤拷for 锟斤拷锟筋将锟节硷拷锟斤拷锟斤拷锟斤拷小锟节斤拷值时停止锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟侥变化锟斤拷锟斤拷锟斤拷锟斤拷欠强盏摹锟揭诧拷锟斤拷锟剿碉拷锟斤拷锟斤拷锟斤拷锟� Increment 为锟斤拷时锟斤拷始值 Initial 锟斤拷锟斤拷小锟节斤拷值 Limit锟斤拷锟斤拷之锟斤拷然锟斤拷锟斤拷锟斤拷锟绞撅拷锟斤拷锟斤拷锟斤拷吮冉锟斤拷锟较革拷锟剿碉拷锟斤拷锟�
GS>1 -0.5 -1 {} for pstack
-1.0
-0.5
0.0
0.5
1.0
GS<5>clear 0 1 1 23 {add} for pstack
276
GS<1>
锟斤拷一锟斤拷锟斤拷锟斤拷什么也没锟斤拷锟斤拷锟斤拷锟斤拷为循锟斤拷锟斤拷为锟秸★拷锟斤拷思锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟街碉拷锟斤拷锟轿伙拷斜锟绞癸拷枚锟斤拷锟斤拷锟斤拷诓锟斤拷锟斤拷锟秸伙拷小锟斤拷诙锟斤拷锟斤拷锟斤拷锟斤拷循锟斤拷锟斤拷锟斤拷锟斤拷锟� add 锟斤拷锟筋。锟斤拷锟斤拷锟斤拷锟斤拷要锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷通锟斤拷锟角诧拷锟斤拷锟斤拷栈锟叫碉拷锟筋顶锟斤拷元锟截讹拷锟节讹拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟角革拷循锟斤拷每一锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟秸伙拷募锟斤拷锟斤拷锟斤拷锟斤拷锟街碉拷锟斤拷诙锟斤拷锟斤拷锟斤拷锟绞碉拷锟斤拷锟斤拷锟斤拷锟斤拷前 23 锟斤拷锟斤拷锟斤拷锟斤拷锟侥和★拷锟斤拷锟斤拷锟斤拷锟斤拷要一锟斤拷锟斤拷锟斤拷某锟绞贾碉拷锟斤拷诩臃锟斤拷锟斤拷恪ｏ拷锟斤拷锟斤拷 for 锟斤拷锟斤拷之前锟斤拷锟斤拷一锟斤拷 0锟斤拷注锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷 for 锟斤拷锟筋。
forall锟斤拷锟斤拷锟斤拷锟筋将锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷诟锟斤拷锟斤拷锟斤拷锟斤拷每一锟斤拷元锟截★拷为锟斤拷实锟斤拷锟斤拷锟侥匡拷模锟斤拷锟斤拷锟皆拷锟斤拷谴拥锟� 0 锟斤拷锟斤拷始一一锟斤拷锟斤拷锟绞★拷锟斤拷锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷时锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷循锟斤拷锟斤拷锟矫硷拷锟斤拷锟斤拷锟斤拷锟侥筹拷始值为 0锟斤拷锟斤拷锟斤拷为 1锟斤拷锟斤拷值为锟斤拷锟斤拷锟斤拷锟斤拷某锟斤拷取锟窖拷锟斤拷锟绞酵� for 锟斤拷锟斤拷锟斤拷锟斤拷锟揭伙拷锟斤拷锟轿ㄒ伙拷牟锟斤拷锟斤拷牵锟斤拷锟斤拷锟斤拷锟皆拷锟斤拷锟饺★拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟轿拷锟斤拷锟侥诧拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷要锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷一锟斤拷锟角憋拷循锟斤拷锟斤拷使锟矫的诧拷锟斤拷锟斤拷锟斤拷锟介；锟节讹拷锟斤拷锟斤拷锟斤拷循锟斤拷锟斤拷锟斤拷锟介。forall 锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟绞轿拷锟紸rray Procedure forall锟斤拷锟斤拷锟斤拷锟绞撅拷锟斤拷械锟揭伙拷锟� forall 锟斤拷锟斤拷锟斤拷锟节硷拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷元锟截和ｏ拷锟节讹拷锟斤拷锟斤拷锟斤拷锟斤拷为锟剿斤拷一锟斤拷说锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷伟迅锟斤拷锟斤拷锟斤拷锟斤拷元锟斤拷压锟斤拷锟斤拷锟斤拷锟秸伙拷摹锟�
GS>0 [11 23 45 -89 26 12 0 -34] {add} forall pstack
-6
GS<1>[1 22 -12 0] {} forall pstack
0
-12
22
1
-6
GS<5>
loop锟斤拷锟斤拷锟斤拷锟斤拷只锟斤拷一锟斤拷循锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟街达拷锟绞憋拷锟窖拷锟斤拷褰拷锟酵ｏ拷谋锟街达拷小锟斤拷锟斤拷浠八碉拷锟斤拷锟斤拷锟街达拷锟斤拷锟揭伙拷锟斤拷锟斤拷锟窖拷锟斤拷锟斤拷睢ｏ拷锟斤拷循锟斤拷锟斤拷锟斤拷没锟斤拷锟斤拷锟斤拷锟斤拷锟街癸拷锟戒，锟斤拷么锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷只锟斤拷通锟斤拷锟斤拷 Ctrl-C 锟斤拷锟斤拷锟斤拷锟解部锟叫讹拷锟斤拷实锟斤拷锟剿★拷锟斤拷锟窖拷锟斤拷锟斤拷诤锟斤拷械锟� exit 锟斤拷锟斤拷 stop 锟斤拷锟筋被执锟斤拷时锟斤拷PostScript 锟斤拷锟斤拷锟斤拷锟斤拷循锟斤拷转锟斤拷去锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷蟆４锟斤拷锟斤拷锟侥憋拷锟斤拷锟斤拷式为锟斤拷Procedure loop锟斤拷
锟斤拷 PostScript 锟叫ｏ拷锟斤拷锟教伙拷锟斤拷说锟斤拷指锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷顺锟津集★拷锟斤拷些锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷一锟皆讹拷锟斤拷锟斤拷锟絳 锟斤拷 }锟斤拷之锟戒。锟斤拷锟教和猴拷锟斤拷锟斤拷锟斤拷锟斤拷锟酵拷锟� key 锟斤拷锟斤拷锟斤拷实锟街ｏ拷锟界：/Macro1 {1 add 2 mul} def锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷之锟斤拷key Macro1 锟斤拷锟斤拷锟斤拷值 {1 add 2 mul} 锟斤拷锟斤拷 key-value 锟皆碉拷锟斤拷式锟斤拷锟诫到锟绞碉拷锟叫诧拷位锟节词碉拷锟秸伙拷锟斤拷疃ワ拷恕锟饺伙拷螅锟斤拷锟斤拷锟� Macro1 锟斤拷锟斤拷锟节斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷时锟斤拷锟斤拷锟侥讹拷锟斤拷锟斤拷锟斤拷执锟叫★拷锟介定锟斤拷锟斤拷械锟斤拷锟斤拷菘锟斤拷愿锟斤拷锟斤拷锟斤拷锟斤拷要锟斤拷锟竭简单伙拷锟竭革拷锟接★拷锟节猴拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟角斤拷锟斤拷锟接癸拷锟节猴拷锟斤拷锟斤拷荨锟侥壳帮拷锟斤拷锟叫╋拷虻サ锟剿碉拷锟斤拷锟斤拷锟斤拷锟斤拷堑锟斤拷锟剿碉拷丫锟斤拷愎伙拷恕锟�
锟斤拷锟斤拷一些锟斤拷习锟斤拷锟斤拷锟竭硷拷锟斤拷员锟斤拷锟斤拷锟斤拷莸锟斤拷私狻ｏ拷锟叫╋拷锟斤拷锟侥答案斤拷锟斤拷锟斤拷一篇锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟�
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