咨詢內容： set Formula = marketdata.STKINDI("y09","dq","vab信號接收測試py()",0,0) set HistroyData = Formula.ParentGrid.GetHistorydata set Formula2 = marketdata.STKINDI("cs09","dq","vab信號接收測試cs()",0,0) set HistroyData2 = Formula2.ParentGrid.GetHistorydata 引用兩個策略的圖表指標信息，發現只會獲得Formula2 的數據，是不是每次只能獲取一個圖表指標信號？
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