As you can see, I just want to print something, and iostream is added, but that means I cout can’t use it.
hold If StdAfx. H is placed at the front of the whole file, no error will be reported
In fact, if other header files are mentioned to the front, an error will be reported – this may be the provision of VS2010, StdAfx. H must be first.
Even if you comment it out All include in StdAfx. H are commented out. Whether the compilation passes or not.
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