题解 | #KiKi设计类继承#
KiKi设计类继承
http://www.nowcoder.com/practice/699ba050e2704591ae3e62401a856b0e
运行速率极快
using namespace std;
#define pi 3.14
class shape{
public:
private:
double x;
double y;
};
class Rectangle:public shape
{
public:
double len,wid;
void GetArea(double len,double wid){
cout<<len*wid<<endl;
}
};
class Circle:public shape
{
public:
double r;
void GetArea(double r){
cout<<r*r*pi<<endl;
}
};
class Square:public Rectangle
{
public:
double s_len;
};
void test(){
double a,b,c,d;
cin>>a>>b>>c>>d;
Rectangle r;
Square s;
Circle e;
r.GetArea(a, b);
e.GetArea(c);
s.GetArea(d, d);
}
int main(){
test();
return 0;
}
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