一个VisualBasic6.0程序，判断用户按下键盘的键值是多少，运行程序后可按A、B、C、D任意键等键位进行测试，会提示你按下的是某个键。-A VisualBasic6.0 procedures to determine the user presses the keyboard keys, run the program, according to the keys of A, B, C, D any key test will prompt you to press a key.