@[juchenglin](/user/580868) $y1$ 是库函数。
by catandcode @ 2023-10-06 11:04:04
建议使用 x,y,x2,y2
by p_Hydroxy @ 2023-10-06 11:05:42
蟹蟹
by juchenglin @ 2023-10-06 11:09:46