>thank you for your help.
>
>I'm a chinese boy,and my english is very poor.We study VFP at school,I like it very much,it's a very cool database tool.
>
>I search solution of question above in our country,but can't found,so ...
Your English is quite understandable, and, of course, you are welcome in this forum. I was just suggesting a search for Chinese for your comfort, but I can't suggest one, my own Chinese being nil. Perhaps some good Chinese forums exists, perhaps not. For the English language, the Universal Thread is great.
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)