在二维空间里有两个点A=(X1，Y1)和B=(X2，Y2)，如果X1>X2并且Y1>Y2 ，我们认为A优于B，A是这个集合的最大极值点，在给定的二维空间里的N个点的集合S中，找出最大极值点。-In two-dimensional space, there are two points = A = (X1, Y1) and B (X2, Y2), if the X1 and Y1 > X2 > Y2, we think that A is superior to B, A

可以用于建立极值的空间模型，如多个站点建立空间极值降雨量模型，预测极值降雨量的分布(An extreme value space model, e.g. the spatial extreme rainfall model is established at multiple stations. The extreme value rainfall model can be predicted and the extreme value spatial model can be establis