fix:修复计算指标时，如果选择了多个指标，但是实际没有用到的bug

models/base_from_calculate.go

@@ -295,6 +295,7 @@ func ReplaceFormula(edbInfoIdArr []*EdbInfo, valArr map[int]float64, formulaMap
 }
 
 func GetFormulaReplace(index, edbInfoId int, formulaStr string, edbInfoIdBytes []string, formulaMap map[string]string, valArr map[int]float64) (formulaResult string, isReplace bool) {
+	formulaResult = formulaStr
 	dKey := edbInfoIdBytes[index]
 	if _, ok := formulaMap[dKey]; ok { //公式中存在
 		if val, valOk := valArr[edbInfoId]; valOk { //值存在