通过读取数据文件绘制曲线图，具有放大，缩小，向上，向下，向左以及向右移动曲线的功能，能够显示局部曲线的能力：环境：Vs2010+QT5.5-The ability to read the data file by drawing a graph, with zoom, up, down, left and right to move the curve function, can display the local curve: Environment: Vs2010+QT5.5