这是一个JAVA版本的编辑控件，支持语法着色，行号，标签(可用于表示断点)，查找等功能，有点类似VC的RichEdit控件.- This is a JAVA version of the edit control, supports syntax coloring, line numbers, labels (can be used to indicate the breakpoint), search functions, somewhat similar to the VC RichEd