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(A)
Point(int xA=0,int yA=0):x(xA),y(yA)
(B)
strcpy......
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使用VC6打开考生文件夹下的工程test17_1,此工程包含一个源程序文件test17_1.cpp,但该程序运行有问题,请改正程序中的错误,使程序的输出结果如下: Vehicle message Car message Vehicle message 源程序文件test17_1.cpp 清单如下: #include <iostream.h> class vehicle int wheels; float weight; public: ***************** found ***************** void message(void) cout<< Vehicle message n ; ; class car:public vehicle int passenger_load; public: ***************** found ***************** void message (void)cout>> Car message n ; ; class truck:public vehicle int passenger_load; float payload; public: int passengers(void)return passenger_load; ; void main() vehicle * unicycle; unicycle=new vehicle; ***************** found ***************** unicycle.message() delete unicycle; unicycle=new car; unicycle->message(); delete unicycle; unicycle=new truck; unicycle->message(); delete unicycle;
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