圓點(diǎn)坐標(biāo):(x0,y0) 半徑:r 角度:a0 則圓上任一點(diǎn)為:(x1,y1) x1 = x0 + r * cos(ao * 3.14 /180 ) y1 = y0 + r * sin(ao * 3.14 /180 )
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