添加和修改新闻的时候如果在新闻内容里面添加有多余的图片而在新闻内容里面没有使用将会在保存的时候作出相应的删除. 删除大类的功能:删除大类的时候也就删除了属于该大类的小类和属于该大类的新闻，也把相关的HTML文件和相关新闻-add and modify information in the press as if there are redundant to add pictures and news content not inside will be used in the course of

用易语言写的一个能弹钢琴的小程序，还能自己加谱，让电脑弹-With easy language to write a small program to play the piano, but also add their own spectrum, computer shells

MidiPlayer class. Add this class to your application or game to play and loop midi files