跪求C++高手帮我编一个最最简单的计算器有简单的加减乘除即可！谢谢～

MFC做吗

DEV_CPP 上通过了,把分给我吧
#include<iostream>
#include<math.h>
using namespace std;
main ()
{
char k;
double s,g;
k='-';
cout<<"求绝对值请按A;求平方根请按B;加减乘除清分别按+-*/" <<endl;
cin>>g;
while (1)
{
cin>>k;
if (k=='=')
break;
if (k=='A')
{
g=fabs (g);
break;
}
if (k=='B')
{
g=sqrt (g);
break;
}
cin>>s;
if (k=='+')
g+=s;
if (k=='-')
g-=s;
if (k=='*')
g*=s;
if (k=='/')
{
if (s==0)
cout<<"wrong";
else
g/=s;
}
}
cout&l