> import numpy as np#导入numpy模块
> temp=np.loadtxt("file.csv",dtype=np.int,delimiter=',')

> temp
array([[21, 2, 32],
  [ 1, 2, 3],
  [ 2, 3, 4]])

> temp.tolist()
[[21, 2, 32], [1, 2, 3], [2, 3, 4]]

> temp
array([[21, 2, 32],
  [ 1, 2, 3],
  [ 2, 3, 4]])
> tem=np.delete(temp,0,axis=0)
> tem
array([[1, 2, 3],
  [2, 3, 4]])
> 

> ten=np.delete(temp,0,axis=1)
> ten
array([[ 2, 32],
  [ 2, 3],
  [ 3, 4]])
>