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During development, I saw two different ways of writing $(PROJECT_DIR) and $(SRCROOT) in the application. What is the difference between the two?
业精于勤,荒于嬉;行成于思,毁于随。
The animationDemo on the left is PROJECT_DIRanimationDemo是PROJECT_DIR右边的animationDemo是SRCROOTThe animationDemo on the right is SRCROOT
animationDemo
PROJECT_DIR
SRCROOT
The
animationDemo
on the left isPROJECT_DIR
animationDemo
是PROJECT_DIR
右边的
animationDemo
是SRCROOT
TheanimationDemo
on the right isSRCROOT