温度实例，适合初学者，比较易懂，试不试牛刀，看了才知道-Temperature example, suitable for beginners, easy to understand, to try to resolve, see

美丽世界dll很好用很强大的文件,不知道大家需不需要可以-Beauty of the world with a very powerful dll files well, do not know if you can or need to see

我需要用两个串口，连接两个仪器，现在我的程序是列出了两个选项框，分别让用户去选择，然后分别点击打开。串口号这么多，用户很多时候也不知道这两个分别连接的是哪个串口，所以很不方便。有什么办法可以让下拉框里只显示出相应的串口-I need to use two serial port, connecting the two instruments, and now my program is listed two options box, let the user to select, and the