本实验设计了一个《北京、南京、深圳列车查询系统》的图形用户界面。用户可以通过此界面，采用“按车站名称查询”、“按列车车次查询”和“按出发地—目的地查询”三种方式，方便地查询需要的列车信息。界面友好清新，操作方便。-The experimental design was a " Beijing, Nanjing, Shenzhen Train Enquiry System,"　the graphical user interface. Users can use this interface, a " query by station name" , " Query by Train Train"　and " by origin- destination query"　three ways to easily check in need train information. Fresh and friendly interface, easy to operate.