if(isNewEvaluator){
CommonTreeNodeStream nodes = new CommonTreeNodeStream(paraTree);
ExcelFormulaJavaTree evaluator = new ExcelFormulaJavaTree(nodes,excel,evaluateStack,currentSheet,true);
Object exprValue = evaluator.expr();
if(exprValue instanceof CellPosition){
CellPosition cp = (CellPosition)exprValue;
for(int rowi=cp.sRowNum;rowi<=cp.eRowNum;rowi++){
for(int coli=cp.sColNum;coli<=cp.eColNum;coli++){
paraValues.add(excel.evaluate(evaluateStack,cp.sheetNum,rowi,coli));
}