How to print a matrix with horizontal lines?

[Minchul Park]

I need to add horizontal lines in a matrix (so that I can distinguish observations in my study).

In particular, consider the following matrix:

version 18
mata:
temp = colshape(1 .. 60, 10)
temp
end

Then, the result is

: temp
        1    2    3    4    5    6    7    8    9   10
    +---------------------------------------------------+
  1 |   1    2    3    4    5    6    7    8    9   10  |
  2 |  11   12   13   14   15   16   17   18   19   20  |
  3 |  21   22   23   24   25   26   27   28   29   30  |
  4 |  31   32   33   34   35   36   37   38   39   40  |
  5 |  41   42   43   44   45   46   47   48   49   50  |
  6 |  51   52   53   54   55   56   57   58   59   60  |
    +---------------------------------------------------+

Here, I want to add horizontal lines under even number rows.
That is, the result I want to make is

        1    2    3    4    5    6    7    8    9   10
    +---------------------------------------------------+
  1 |   1    2    3    4    5    6    7    8    9   10  |
  2 |  11   12   13   14   15   16   17   18   19   20  |
     ---------------------------------------------------
  3 |  21   22   23   24   25   26   27   28   29   30  |
  4 |  31   32   33   34   35   36   37   38   39   40  |
     ---------------------------------------------------
  5 |  41   42   43   44   45   46   47   48   49   50  |
  6 |  51   52   53   54   55   56   57   58   59   60  |
    +---------------------------------------------------+

But, I cannot find the solution.
How can I add the horizontal lines?

[Nick Cox]

I don't know a way to do this in Mata without writing your own function. If you're listing data, use list in Statawith the option sep(2).