用c#绘制表格，大家有会的没
-1398.977825-722.0982575
-750.4379216
-300.9540341
-342.4040541
-364.5889257
-418.740299
-530.3941538
-767.787689
-920.7601663
-978.7008455
-1026.863734
............
7266.563531
7339.794601
7399.739434
7495.82405
7621.71417
7680.543997
7843.776221
7931.110611
8114.621214
8377.679329
8546.505542
8641.151372
8632.531377
..........
这个图片是有毛刺的，我希望有算法可以去除毛刺，有会的大神可以稍微提点下吗
