执行这段代码，报 ipykernel_launcher.py: error: unrecognized arguments:错误，将 parser.parse_args () 替换成 parser.parse_known_args ()[0]，解决问题。代码如下，
%tb import tensorflow as tf
import numpy as np
import argparse
from zh.model.mnist.mlp import MLP
from zh.model.utils import MNISTLoader
parser = argparse.ArgumentParser (description=‘Process some integers.’)
parser.add_argument (’–mode’, default=‘train’, help=‘train or test’)
parser.add_argument (’–num_epochs’, default=1)
parser.add_argument (’–batch_size’, default=50)
parser.add_argument (’–learning_rate’, default=0.0001)
args = parser.parse_known_args ()[0]
data_loader = MNISTLoader ()