tktest5.txt

思路很清晰的c++课件。例子很简明

#include <iostream.h>
void main()
{   double diameter;
    cout<<"Enter diameter:\n";
    cin>>diameter;
    _____(1)_____;
    cout<<"Enter heigh:\n";
    cin>>heigh;
    _____(2)_____;
    area=3.1415926*diameter*heigh;
    cout<<"The area is:"<<area<<endl;
}