C++面向对象程序设计第七章(17)

C++面向对象程序设计

24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 basebase// aim base-class pointer at base-class object and print commissionEmployeePtr = &commissionEmployee; // perfectly natural basecout << "\n\n\nCalling print with base-class pointer to " nbasebasefunction:\ n"; << "\nbase-class object invokes base-class print function:\n\n"; commissionEmployeePtrbasecommissionEmployeePtr->print(); // invokes base-class print // output objects commissionEmployee and basePlusCommissionEmployee basederived-class objects:\ n"; cout << "Print base-class and derived-class objects:\n\n"; basecommissionEmployee.print(); // invokes base-class print n"; cout << "\n\n"; derivedbasePlusCommissionEmployee.print(); // invokes derived-class print floating// set floating-point output formatting cout << fixed << setprecision( 2 ); derived// create derived-class pointer *basePlusCommissionEmployeePtr BasePlusCommissionEmployee *basePlusCommissionEmployeePtr = 0; derived// create derived-class object BasePlusCommissionEmployee basePlusCommissionEmployee( "Bob", "Lewis", "333-33-3333", 5000, .04, "Bob", "Lewis", "333-33-3333", 5000, .04, 300 );

Outline

fig13_05.cpp

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