用MPLAB IDE编程时，软件总是弹出一个窗口提示： “the extended cpu mode configuration bit is enabled,but the program that

用MPLAB IDE编程时，软件总是弹出一个窗口提示： “the extended cpu mode configuration bit is enabled,but the program that was loaded was not built using extended cpu instructions. therefore,your code may not work properly.” 怎么办？ 在main函数前加一句伪指令:#pragma config XINST=OFF即可。