说明：  如何使用好Matlab的强大绘图能力进行图形的绘制，在本文档中给出了图文并茂的阐述。另外还有丰富的例子，使你看完就能轻松绘制出各种类型的图来。
(How to use good Matlab powerful graphics capabilities for graphics rendering, illustrated exposition is given in this document. In addition, there are a wealth of examples, so you read you can easily draw many types of diagrams to.)