【摘要】 介绍了用VB作为开发环境,研制"日产2000t熟料预分解窑"模拟系统时遇到的程序设计问题以及解决方案.为了增加图形操作界面的使用效果,方便用户使用鼠标,在遇到多按扭时,很多时候会让按扭的焦点随着鼠标走;另外,由于VB没有端口操作函数,而许多控制类程序又必须使用I/O端口操作,本文给出了一种I/O端口函数制作方法;给出了动态使用FoxPro数据库的方法.更多还原

【Abstract】 In the developing process of a scientific research project, "Simulation System of Cement Predeomposition Kiln with the Output of 2000 Tons Per Day", which was developed in Visual Basic, we met some programming problems.This paper just introduces some solutions to these problems. In order to make users operating the interface easily, when there are many buttons on the screen we need the input focus moves with the mouse moving; because VB has no port operate function, and a lot of control programs must use I/O port operate, this paper provides a kind of I/O port function manufacture method and the method to use FoxPro database dynamically.更多还原