类似如下的数据,就是一个按时间排序的一维数据,如:
20.03,20.06,20.03,20.01,20.01,19.98,19.99,20.03,19.96,19.99,19.98,19.98,19.99,20,19.99,20,20.02,19.97,20,19.94,20.01,20.01,
19.98,20.02,19.98