常用并且好用的图表控件4种，比如teechart 每个控件均含有历程和控件使用说明和控件，辛苦整理，请勿拍砖，旨在共享-Common and easy to use charting controls four kinds, such teechart each control process and controls contain instructions and controls, painstakingly collated, do not Paizhuan order to shar