该例子是用objective-c语言，在xcode平台上开发的计算器程序，对刚开始学习objective-c语言的新手来说，还是有一些帮助的。-The example is objective-c language, xcode platform developed calculator program, to just start learning objective-c language, newcomers, there are still some help.

一个简单的计算器，是在Xcode上实现，用Objective-C编译。-A simple calculator is in Xcode to achieve, in Objective-C compiler.

calculator in iphone. Objective-C-calculator in iphone. Objective-C