一个灵活的图表库可供.net程序使用。可以提供多种方式的图表，2D、饼图等等。(上次的源码ZedGraph_Source_43.zip错误，此次是正确的)-a flexible graphics library available. Net proceedings. A variety of methods can provide charts, 2D, pie and so on. (Source ZedGraph_Source_43.zip last mistake, this is cor