import numpy as np
a= np.arange(20)
pos_left = a.searchsorted(3)
#也可以写成np
.searchsorted(a, 3)
pos_right = a.searchsorted(10, "right")
pos_left, pos_right
#(3, 11)
a[pos_left : pos_right]
#array([ 3, 4, 5, 6, 7, 8, 9, 10]) 注意[:]是左闭右开
想要利用searchsorted方法来实现获取左右两个端点的数据,则左端点采用"left",右端点"right".