设A点坐标(x1,y1),B点坐标(x2,y2),则：x1+y1=1 (1)【交点满足直线方程】x2+y2=1 (2)【交点满足直线方程】a*x1^2+b*y1^2=1 (3)【交点满足椭圆方程】a*x2^2+b*y2^2=1 (4)【交点满足椭圆方程】(x1-x2)^2+(y1-y2)^2=(2(...