本文最后更新于 2024-07-21，文章内容可能已经过时。

阿莫的vex记录

string num[] = split(s@name, "_");
s@num = num[1];
i@sun = atoi(@num);
i[]@class_num = array();
int npt = npoints(0);
for (int i=0;i<npt;i++){
int classpt = point(0,"sun",i);
    if (find(i[]@class_num,classpt)<0)
    {
    append(i@class_num,classpt);
    }
}
i[]@class_num = sort(@class_num);
if (@sun!=@class_num[0] &&@sun!=@class_num[1]){
    removepoint(0,@ptnum);
    }

test

test