Description: Instance in a small company' s personnel information management system has given the program code, there are two issues: (1) base class member functions of the pay () and displayStatus () function body is empty, they still have to write a function body, it is redundant. (2) in main () function, the establishment of four different types of objects, they conducted a similar operation, but repeated four times to write a similar statement, the procedure simple enough. Chapter VI the use of virtual function polymorphism and knowledge to improve on the procedures to resolve these two problems, exercises virtual function and pure virtual function of the use and the realization of dynamic polymorphism.
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example2虚函数
..............\Debug
..............\.....\empfunc.exe
..............\.....\empfunc.ilk
..............\.....\empfunc.obj
..............\.....\empfunc.pch
..............\.....\empfunc.pdb
..............\.....\main.obj
..............\.....\vc60.idb
..............\.....\vc60.pdb
..............\empfunc.cpp
..............\empfunc.dsp
..............\empfunc.dsw
..............\empfunc.ncb
..............\empfunc.opt
..............\empfunc.plg
..............\employee.h
..............\main.cpp
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