用vc完成点、线、面的绘制。可以绘制城市符号，三角形，五角星，线可以绘制土堤，面可以绘制带晕线和不带晕线的面状符号，并且可以设计点、线面的符号-With vc the completion point, line and surface drawing. Can draw the city symbol, the triangle, five-pointed star, the line can be drawn embankment,