设B点的坐标(x,y)向量BO=(-x,-y)向量OA=(2,2)向量BA=(2-x,y-2)|向量BO|=|向量OA|即x^2+y^2=2^2+2^2|向量BA|=|向量OA|即(2-x)^2+(2-y)^2=2^2+2^2解得x=1+√3 ,y=1-√3或x=1-√3,y=1+√3B=(1+√3,1-√3)或B=(1-√3,1+...