A1->A5->A9,规律是横坐标加1,纵坐标减1;
A2->A6->A10,规律是横坐标加1,纵坐标加1;
A3->A7->A11,规律是横坐标减1,纵坐标加1;
A4->A8->A12,规律是横坐标减1,纵坐标减1;
2012=4 *503,因此A2012应该是跟A4、A8在同一象限,横坐标为-1-502= -503,纵坐标为-1-502= -503,即A2012(-503,-503)
A1->A5->A9,规律是横坐标加1,纵坐标减1;
A2->A6->A10,规律是横坐标加1,纵坐标加1;
A3->A7->A11,规律是横坐标减1,纵坐标加1;
A4->A8->A12,规律是横坐标减1,纵坐标减1;
2012=4 *503,因此A2012应该是跟A4、A8在同一象限,横坐标为-1-502= -503,纵坐标为-1-502= -503,即A2012(-503,-503)