+ add Map2KeySlice

utils/typeconv.go

@@ -372,3 +372,12 @@ func Format4Output(obj interface{}, isSingleLine bool) (retVal string) {
 	}
 	return retVal
 }
+
+func Map2KeySlice(flagMap map[string]int) (keyList []string) {
+	for k, v := range flagMap {
+		if v != 0 {
+			keyList = append(keyList, k)
+		}
+	}
+	return keyList
+}