求教！哪位大神给我讲解一下这一串代码是什么意思？新手上路，很着急！！！！！！！

treenode thelist = getvarnode(current,"componentlist");
5 _, r& B; d. B) C  treenode thesum = getvarnode(current,"targetcomponentsum");
  setnodenum(thesum,0);
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, h7 o8 T2 Y7 w# k2 b   {
     setnodenum(cellrowcolumn(thelist,1,1),getlabelnum(first(current),"1"));
7 |4 Z$ U& W7 Z+ F2 x2 ^% P    inc(thesum,getlabelnum(first(current),"1"));
. V3 ?/ Y) e+ q     setnodenum(cellrowcolumn(thelist,2,1),getlabelnum(first(current),"2"));
    inc(thesum,getlabelnum(first(current),"2"));
" ^4 b3 C3 u* H3 J* _     setnodenum(cellrowcolumn(thelist,3,1),getlabelnum(first(current),"3"));
    inc(thesum,getlabelnum(first(current),"3"));
     setnodenum(cellrowcolumn(thelist,4,1),getlabelnum(first(current),"4"));
5 H& Q. [: v2 [$ X; c7 v* O    inc(thesum,getlabelnum(first(current),"4"));
' N9 |1 t$ B& `# W  }
' F/ C) Q6 Y6 _6 l. H}

你的代码不全啊，但是大概就是根据当前实体的标签值设置属性节点“componentlist”（好像是个表格）的值，，然后将节点targetcomponentsum的值加対应标签的值。

2# missman
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/ s: e+ r" w$ e9 `+ l* J" f. m我这新手，主要是不明白  setnodenum 、getlabelnum这之类的具体什么含义，有什么作用