package liu0919;
public class Sanjiao
{
public double z(double a,double b,double c)
{
return a+b+c;
}
}
package liu0919;
public class A {
public static void main(String[] args) {
Sanjiao sj=new Sanjiao();
System.out.println("三角形的周长="+sj.z(23, 5, 8));
}
}
