股票——布林带
详情见百科:
http://baike.baidu.com/link?url=pT-FtJYhpJzrxqsTaZU8t5FN6Kd7Q7_lXoKXtFHxorqEVjhS2PGyjF_gNcksgzCJa-k5qpmkFQ7EgcehS4FMfgn_2CTF0YqK4G8q0l6L1BxaYsmncJl4c-NzGHshZPlbV-Dcj6_Um3kzQb5rB4Iy1o28GMD60wnV6Hxhpwsj9trsz5SwbJ6bw3fTOX9dV4aCe8G_FeS02E4q64pCfWx1gvDhNy0QGhEbG8TmA7f0pWy