get mod arr for child fields scroll

src/gen/generator.go

@@ -260,15 +260,13 @@ func computerLoop(field *model.DefField) {
 func connectChildrenToSingleStr(arrOfArr [][]string, total int, values *[]string) {
 	indexArr := getModArr(arrOfArr)
 
-	for i := 0; i < total; i++ {
-		concat := ""
+	for count := 0; count < total; count++ {
+		str := ""
 		for idx, row := range arrOfArr {
-			concat = concat + row[indexArr[idx]] // get one item from each child, grouped as a1 or b2
+			str = str + row[count % indexArr[idx]] // get one item from each child, grouped as a1 or b2
 		}
 
-		*values = append(*values, concat)
-
-
+		*values = append(*values, str)
 	}
 }