结合access数据库，自动绘制气象三线图，省去了手工绘制的麻烦，并加入了e-t曲线绘制。可以供基层气象局的朋友参考。-Combination of database access, automatic drawing meteorological three-line graph, and save the trouble of hand-painted, and joined et curve drawing. Friends for primary Meteorological Bureau reference.