小编use*_*136的帖子

if(API>30)
{
   double c1 = 0.0178; 
   double c2 = 1.187; 
   double c3 = 23.931;
}
else
{
   double c1 = 0.0362; 
   double c2 = 1.0937;
   double c3 = 25.7240;
}

double Rs2 = (c1 * sg * Math.Pow(p, c2)) * Math.Exp(c3 * (API / T));

C#不接受c1,c2,c3在我的代码定义瓦尔,我怎么能解决这个问题？