在Linux系统运用QT进行开发一个计算器 并通过交叉编译，在arm平台运行-QT in the Linux system to develop the use of a calculator and, through cross-compiler, a platform to run in the arm

QT 开发的简单计算器源码，经过简单编译即可用于arm开发板上-QT developed a simple calculator source code, after a simple compilation development board can be used to arm