如何找到与另一个点最近点的边上的点

import math

def distance_point_to_line(point, line_start, line_end):
    x0, y0 = point
    x1, y1 = line_start
    x2, y2 = line_end

    dx = x2 - x1
    dy = y2 - y1

    if dx == 0 and dy == 0:
        return 0

    t = ((x0 - x1) * dx + (y0 - y1) * dy) / (dx * dx + dy * dy)

    if t < 0:
        return math.sqrt((x0 - x1) ** 2 + (y0 - y1) ** 2)
    elif t > 1:
        return math.sqrt((x0 - x2) ** 2 + (y0 - y2) ** 2)
    else:
        return abs((x2 - x1) * (y1 - y0) - (x1 - x0) * (y2 - y1)) / math.sqrt(dx * dx + dy * dy)

# 示例
point = (3, 4)
line_start = (1, 1)
line_end = (5, 5)

print(distance_point_to_line(point, line_start, line_end))