在mac console下 执行c++文件

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$ 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 

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