• 2022-06-07 问题

    Polylines are much more complex than lines,construction lines and ray lines.

    Polylines are much more complex than lines,construction lines and ray lines.

  • 2022-06-08 问题

    Polylines take up more disk space than the equivalent lines and can’t be used to draw ordinary lines.

    Polylines take up more disk space than the equivalent lines and can’t be used to draw ordinary lines.

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