practice a fingering process. Process interface which depicts the various keys (...

代码说明：

一个指法练习程序.程序界面中画出了各个键(限字母)在键盘上的位置,以方便初学者熟悉键盘.可以在程序中设置练习的字母范围,如A~G,H~L...还可以对练习的时间进行设置,时间到后反馈练习成绩.-practice a fingering process. Process interface which depicts the various keys (the letter) in the position of the keyboard, to facilitate beginners familiar with the keyboard. The procedure can set the scope of practice of the alphabet, A to G, H ~ L. .. can also exercise the right time set up, time after practice performance feedback.