Thanks Mates,
It has been proved that the option is a good one.
I had create a very simple vi try to indicate the idea( gleichman and Jean-Marc, I haven't use your great code in the example yet, but it will support the real develope later:).
In the example:
1) when if case is true, the vi will create a "test.ini" to save all label and its caption, while the label is a tag;
2) after translate the "test.ini" to other language(even Chinese and Japanese:), shift the if case to false to load the language.
as gleichman mentioned, when creating a complicated application which include cluster, array etc ,then the iterate function need to be optimized.
mul.vi