Symbian 控件的使用，对理解Symbian程序的框架很有帮助。-Control the use of Symbian, Symbian process in understanding the framework helpful.

java的入栈和出栈，在android方面，他可以有效的方便的控制入栈操作和出栈操作-java stack and the stack in the android, he can effectively facilitate the control stack operation and the stack operation

FX3U控制程序，带伺服及滚筒流水线，电网使用堆垛程序(FX3U control program, with servo and drum assembly line, the use of stack grid procedures)