C++提示：address of stack memory associated with local variable ‘d‘ returned

C++代码提示：

warning: address of stack memory associated with local variable 'd' returned

代码：

//角度转度分秒
double* degreeToDegree(double degree)
{
   //...
   double d[3];
   //...
   return d; //warning提示...
}

要返回的是一个double数组d, return d的语句出现了警告。

解决办法：为数组增加 static 修饰符：

 //...
 static double d[3];
 //...
 return d;