这是一个基于jfreechart的饼图程序，主要特点是不在服务器端生成图片文件，直接在用户端显示图片，解决了大量用户访问时造成的写文件冲突，另外可减轻服务器的负荷-based jfreechart pie procedures, the main characteristic is not server-generated image files, directly in the client showed photographs, addressed many users visit the

负荷曲线的画法，多条曲线并行，且可移动曲线-Load curve of the painting, a number of parallel curves, and the mobile curve

用混沌理论和广义回归神经网络进行短期负荷的预测,取得了满意的效果-Using chaos theory and generalized regression neural network for short-term load forecast, satisfactory results have been achieved