用于脱机字符识别里的模板匹配法，USPS字库用语Fisher线性判定识别手写数 字。由于一些原因，有些数据库不能提供，需要读者自己采集样本。 -Offline Character Recognition for The template matching, USPS font terminology Fisher Linear found handwritten identification numbers. For some reason, some of the databases

基于QT的日K线图形界面绘制，其中包含链接SQL数据库，并利用里面的数据绘图-QT-based graphical interface K line drawing, which contains links to SQL databases and use the data inside the drawing