小编use*_*559的帖子

这个片段工作得很好。

for (int i = 0; i < 1; i++) // for some other purpose
{
  // some other code

  double** angle = new double* [10];   // for a 2D matrix
  for (int j = 0; j < 10; j++)
  {
     angle[j] = new double [3];

     if (j == 0) 
            angle[j][0] = 2;          // focused on the first column for now
     else 
            angle[j][0] = angle[j-1][0]+3;

     std::cout << angle[j][0] << std::endl;
  }

  for (int i = 0; i < 10; i++) …