'判断点在区域内函数 @}Z/{Z[@
Function point_in(p1x As Single, p1y As Single, p2x As Single, p2y As Single, p3x As Single, p3y As Single, p4x As Single, p4y As Single, ppx As Single, ppy As Single) As Boolean lKD@2
Dim aob, boc, cod, doa, sum As Single (hV"z; rI
If ppx = p1x And ppy = p1y Then ii2Z}qe
point_in = True jlP7'xt1%
Exit Function &e)p6Egl
End If 3"hR:'ts
If ppx = p2x And ppy = p2y Then A-u5
point_in = True 0X-2).nu
Exit Function )/AvWDKvO
End If Jqj6L993e
If ppx = p3x And ppy = p3y Then ykeUS
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point_in = True -U $pW(~
Exit Function B<&_lG0s