串口采集数据，可实现采集速度增减，数据保存为TXT格式，数据实时显示，类似滚动条效果，同时可以设置坐标轴的格式，显示颜色，功能强大。-serial sampling,the rate can be increased and reduced,the datas sampled were saved in txt type file, and all the datas are showing in real time