本程序实现的功能是具有自动选择功能的组合框， 所谓具有自动选择功能的组合框，是指在输入时，列表中匹配当前文本的项目被自动选择-this program is the function automatically selects the combination of functional box, The so-called automatic choice with a combination of functional box, refers to the importation, the