这个计算器源代码包含了delphi7的基础知识，基本控件的使用，基本语法的用法，适合于刚学delphi7的初学者参考。本程序由本人编写。-This calculator source code contains delphi7 the basic knowledge, basic controls of the use of basic grammar Usage, suitable for just learning delphi7 of reference for beginners.