u3d 逐个点运动，路径运动。
U3d one by one, path motion.
作者：韩梦飞沙
Author：han_meng_fei_sha
邮箱：313134555@qq.com
E-mail: 313134555 @qq.com
逐个点运动，路径运动。
I'm going to do some motion and path.
如果是动态增加，就不要用数组，用list。这种。动态增加。点击一个点，加入列表。
If it's a dynamic increase, don't use an array, list.This kind of.Dynamic increase.Click on a dot and add the list.
环绕运动 Surrounding the movement