【名词&注释】
条件表达式(conditional expression)、派生类(derived class)、文件扩展名(suffix name)
[单选题]Visual FoxPro的报表文件.FRX中保存的是
A. 打印报表的预览格式
B. 己经生成的完整报表
C. 报表的格式和数据
D. 报表设计格式的定义
有以下程序 #includeiostream> #includestring> using namespace std; class base { private: charbaseName[10]; public: base() { strcpy(baseName,"Base"); } virtual char*myName() return baseName; } char *className() { return baseName; } }; class Derived: public base { private: char derivedName[10]; public: Derived() { strcpy(derivedName,"Derived"); } char *myName() { return derivedName; } char *className() { return derivedName; } }; void showPtr(base &p) { coutp.myName0" "p.className(); } int main() { base bb; Derived dd; showPtr(dD.; retum 0; } 动行后的输出结果为