編譯正常通過，但運行時出現——
forrtl: severe (170): Program Exception - stack overflow
Image PC Routine Line Source
2DWP.exe 00401A73 Unknown Unknown Unknown
2DWP.exe 004029B9 Unknown Unknown Unknown
2DWP.exe 00449929 Unknown Unknown Unknown
2DWP.exe 0042EDB9 Unknown Unknown Unknown
KERNEL32.dll 77E7CA90 Unknown Unknown Unknown
Incrementally linked image--PC correlation disabled.
Press any key to continue
解決方法：
在project->settings->link->Category=output->stack allocations
設一個足夠大的值就行