初學c語言的時候用tc2.0 做的一個小程序

/*****************************************************/
/*Title:LM317 voltage calculator                         */
/*Address:Foshan City, Guangdong Province */
/*NDesigner:yangxiufeng                                    */
/*Time:2010-5-24                                                */
/*****************************************************/
#include<iostream>
using namespace std;
int main()
{
 float R,r;
 float Vout;
 cout<<"請輸入電阻R1、R2的值:"<<endl;
 cout<<"R1(Ω)=";
 cin>>R;
 cout<<"R2=(Ω)";
 cin>>r;
 Vout=1.25*(1+r/R);
 cout<<"LM317的輸出電壓為Vout："<<Vout<<"V"<<endl;
 return 0;
}