我这个代码为啥Commentary(\"总品种资金:\"+Text(zjj));最后什么数据也没有，第一个Commentary(\"分品种资金:\"+Text(Portfolio_CurrentEquity))这句有数据

Vars

Series<String> aa;

Series<Numeric> zjj;

Events

OnBar(ArrayRef<Integer> indexs)

{

Commentary(\"分品种资金:\"+Text(Portfolio_CurrentEquity));

SetTBProfileString(\"symbol\",\"Equity\",\"Portfolio_CurrentEquity\");

aa = GetTBProfileString(\"symbol\",\"Equity\");

zjj = Value(aa);

Commentary(\"总品种资金:\"+Text(zjj));

}