补充桌面客户端

hyb

2025-10-24 43c4449e6c9231446895ad26d169825ca7a65c9a

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subroutine string_inout_optional(output)
    implicit none
    character*(32), optional, intent(inout) :: output
    if (present(output)) then
      output="output string"
    endif
end subroutine