import numpy as np a= np.arange(20) pos_left = a.searchsorted(3)    #也可以写成np .searchsorted(a, 3), 注意这里操作的a是一列,而不是整个ndarray pos_right = a.searchsorted(10, "right")  pos_left, pos_right    #(3, 11

bisect() np.searchsorted()