/*¶ê§Î¶gªø­pºâ*/<br>
#include<iostream.h><br>
<br>
int main()<br>
{<br>
cout&lt;&lt;"-Calculate the circumference of a circle-"&lt;&lt;endl;<br>
cout&lt;&lt;"Radius = "&lt;&lt;10&lt;&lt;endl;<br>
cout&lt;&lt;"Circumference = "&lt;&lt;(2*3.14*10)&lt;&lt;endl;<br>
return(0);<br>
}<br>