本例设计一个普通的计算器，该计算器除没有科学计算机功能外和Windows带的计算器类似。通过此程序的设计，读者可以掌握VB中\"控件数组\"的建立和使用方法以及字符串与数值之间的互相转换方法-design an ordinary calculator, in addition to the no scientific calculator functions and the computer with the Windows calculator similar. Through this program design, readers can grasp VB "Control Array", the establishment and use of the string and numerical among the Conversion