P33 2.8 以函数调用的方式，求圆柱体的体积． # include<iostream.h> # define Pi 3.1415926 double CalculateVolume(double radius,double height) {  return Pi*radius*radius*height/3;}      void main()   {    double raduis,height;   cout<<"Please input a raduis:";   cin>>raduis;   cout<<"Please input a height:";    cin>>height;    cout<<"Calculate volume value is:"     <<CalculateVolume(raduis,height)<<endl;   }  

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