using System;
using System.Collections.Generic;
using System.Text;

class Fact
{

int x;
public int GetFact()
{
float temp;
int save =x;
int a =1;
while (x>a)
{
a++;
temp=this.x/a;
x/=a;
if((float)x!=temp){
return-1;}
}
Swap(this.x,save);
return save ;

}

}

using System;
class Triangle
{
private int a;
private int b;
private int c;
public Triangle(int va ,int vb ,int vc )
{
a= va ;
b = vb;
c = vc;
}
static void Main()
{

Triangle tr= new Triangle(20,20,20);
Console.WriteLine("{0},{1},{2}",tr.va,tr.vb,tr.vc);

}

}

这段代码哪里出错了 请问大家