1
$ g++ -o NewFileName OldFileName.cpp
-o is the letter O not zero
NewFileName will be your executable file
OldFileName.cpp is your c++ file
After you run that command type the following in terminal to run your program:
$ ./NewFileName
2 同1一样效果
$ g++ OldFileName.cpp -o NewFileName
3
原文：http://www.cnblogs.com/pengyingh/p/5301246.html