晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 .
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System : Linux srv.rainic.com 4.18.0-553.47.1.el8_10.x86_64 #1 SMP Wed Apr 2 05:45:37 EDT 2025 x86_64
User : rainic ( 1014)
PHP Version : 7.4.33
Disable Function : exec,passthru,shell_exec,system
Directory :  /usr/share/graphviz/gvpr/

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Current File : //usr/share/graphviz/gvpr/chkedges
/* Looks for multiedges and loops, and output
 * those found along with counts. If the -d flag
 * is given, edge direction is taken into account.
 */
BEGIN{
  char* ename; 
  char* n; 
  int doDir, cnt[]; 
  int loopcnt[];
  int nloops, nmulti;
  if ((ARGC > 0) && (ARGV[0] == "-d"))
    doDir = 1;
  else
    doDir = 0;
}
BEG_G{unset(cnt); unset(loopcnt); nloops = nmulti = 0;}
E{
  if (doDir || (tail.name <= head.name)) ename=tail.name+"_"+head.name;
  else ename = head.name+"_"+tail.name;
  if (tail == head) {
    loopcnt[ename] += 1;
    if (loopcnt[ename] == 1) nloops += 1;
  }
  else {
    cnt[ename] += 1;
    if (cnt[ename] == 2) nmulti += 1;
  }
}
END_G{
  printf ("graph %s: %d loops %d multiedges\n", $.name, nloops, nmulti);
  for (cnt[n]) {
    if (cnt[n] > 1)
      printf ("%s : %d\n", n, cnt[n]);
  }
  for (loopcnt[n]) {
    if (loopcnt[n] > 0)
      printf ("%s : %d\n", n, loopcnt[n]);
  }
}

haha - 2025