链接: http://sofasofa.io/forum_main_post.php?postid=1001175
>>> x
array([[ 1. , 2.3],
[ 1.3, 2.9]])
>>> a = np.trunc(x)
>>> a
array([[ 1., 2.],
[ 1., 2.]])
>>> b = np.ceil(x)
>>> b
array([[ 1., 3.],
[ 2., 3.]])
>>> c = np.floor(x)
>>> c
array([[ 1., 2.],
[ 1., 2.]])
>>> d = np.rint(x)
>>> d
array([[ 1., 2.],
[ 1., 3.]])
x = np.array([-1.01, 1])
np.rint(x)
>>> np.array([-1, 1])
x = [-0.99, 1]
np.rint(x)
>>> np.array([-1, 1])