public er(string id, int numEr, int conteo)
 {
     this.id             = id;
     this.arbolGuia      = new arbol();
     this.afn            = new ArrayList();
     this.afd            = new ArrayList();
     this.numEr          = numEr;
     this.conteoAnalisis = conteo;
     this.lexemas        = new ArrayList();
 }
 public void setArbol(arbol tree)
 {
     this.arbolGuia = tree;
 }