用于将数学公式生成图片，显示在网页上，方便实用。

这个里面有获取编辑器内容和设置编辑器内容。两种方法，是以前上传的https://download.csdn.net/download/qq_33769914/10651952这个地址的整理。

MathCast is an equation editor, an application that allows you to input mathematical equations. These equations can be used in written documents, webpages, databases, etc. They could be rendered graphically to the screen, to picture files, or to MathML - today's leading standard language for describing mathematics.