from sprites import point_is_on_segment
A = (200,80)
B = (-200,0)
C = (200,0)
D = (0,0)
E = (-1000,0)
print(point_is_on_segment(A,(B,C))) # 判断A点是否在线段BC上
print(point_is_on_segment(D,(B,C))) # 判断D点是否在线段BC上
print(point_is_on_segment(E,(B,C))) # 判断E点是否在线段BC上
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