得用滑动条来控制音频的播放，可调整速度播放大小-To use the slider to control the audio playback, adjustable playback speed size

运用opengl语言实现滑块的上下左右移动，用键盘上的上下左右箭头来进行控制，在操作之前先选择两个滑块中的一个-Use opengl language implementation slider from top to bottom and move around, about using the up and down on the keyboard arrows to control, in operation before you choose one of the two sliders

使用OpenFrameworks实现的滑动器控件，有左右滑动式，上下滑动，还有二维面板（x,y轴实现）控件-OpenFrameworks implemented using slider controls, there are left and right sliding, sliding up and down, as well as a two-dimensional panel (x, y-axis to achieve) control