Given two straight line segments (represented as a start point and an end point), compute the point of intersection, if any. If there's no intersection, return an empty array.
\r\nThe absolute error should not exceed 10^-6. If there are more than one intersections, return the one with smallest X axis value. If there are more than one intersections that have same X axis value, return the one with smallest Y axis value.\r\n\r\nExample 1:
\r\n\r\n\r\nInput: \r\nline1 = {0, 0}, {1, 0}\r\nline2 = {1, 1}, {0, -1}\r\nOutput: {0.5, 0}\r\n\r\n\r\nExample 2:
\r\n\r\n\r\nInput: \r\nline1 = {0, 0}, {3, 3}\r\nline2 = {1, 1}, {2, 2}\r\nOutput: {1, 1}\r\n\r\n\r\nExample 3:
\r\n\r\n\r\nInput: \r\nline1 = {0, 0}, {1, 1}\r\nline2 = {1, 0}, {2, 1}\r\nOutput: {} (no intersection)\r\n\r\n\r\nNote:
\r\n\r\n给定两条线段（表示为起点start = {X1, Y1}和终点end = {X2, Y2}），如果它们有交点，请计算其交点，没有交点则返回空值。
要求浮点型误差不超过10^-6。若有多个交点（线段重叠）则返回 X 值最小的点，X 坐标相同则返回 Y 值最小的点。
\n\n
示例 1：
\n\n输入：\nline1 = {0, 0}, {1, 0}\nline2 = {1, 1}, {0, -1}\n输出： {0.5, 0}\n\n\n示例 2：
\n\n输入：\nline1 = {0, 0}, {3, 3}\nline2 = {1, 1}, {2, 2}\n输出： {1, 1}\n\n\n示例 3：
\n\n输入：\nline1 = {0, 0}, {1, 1}\nline2 = {1, 0}, {2, 1}\n输出： {}，两条线段没有交点\n\n\n\n\n
提示：
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