过O的直线跟矩形的交点只能落在EDCF区间内。
是的。定义域要收缩一下:
本帖于 2024-01-06 10:26:48 时间, 由普通用户 askerfor 编辑
过O的直线跟矩形的交点只能落在EDCF区间内。
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