Same program different result!

This morning, I was running a perl program on a windows 2003 server. But with the same input and program, the final results were different. I did not know the reason. The possible reason was that program was based on the memory content.

I would analyze more about it. It was well known that perl was a good script programming language. But it was cramped. There was another better language--Python. I was learning some materials on it. There was a nice book on Text Processing in Python. It was recommanded by Cr999. Its link was http://www.gnosis.cx/TPiP/