Qt: Pro project file

qt: pro Engineering documents
1. Variable TEMPLATE： app Applications ,lib Build a library
2. Variable TARGET： Defines the name of the executable
3. Variable DESTDIR： Defines the directory where executable files are stored
4. Variable CONFIG： Defines compilation options , namely
debug Indicates that the object code created is a debug version
warn_on Ask the compiler to turn on the alarm switch when compiling the application
5. Variable OBJECTS_DIR： Describes compilation / Location of intermediate files generated during application connection , That is, the intermediate file generated by the compiler hello.o It is placed in the directory where the project files are located .