上传者: Generallee 
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                                    上传时间: 2019-12-21 19:47:13
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                                    文件大小: 193B
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                                    文件类型: H
                                
                            
                                
                            
                                设计一个窗口,在该窗口中练习键盘的响应,要求如下:
(1)    单击键盘上的向上箭头时,窗口中显示“You had hitted the up key”
(2)    单击键时,窗口中显示“You had hitted the SHIFT key”
(3)    单击键时,窗口中显示“You had hitted the CTRL key”
(4)    单击键时,窗口中显示“You had hitted the CTRL A key”
(5)    单击键时,窗口中显示“You had hitted the SHIFT B key”