Merge pull request '修改npu示例' (#5) from liuzx into master

Reviewed-on: https://openi.pcl.ac.cn/OpenIOSSG/OpenI_Cloudbrain_Example/pulls/5

npu_mnist_example/config.py

@@ -15,7 +15,8 @@
 """
 network config setting, will be used in train.py
 """
-
+import os
+os.system('pip install easydict')
 from easydict import EasyDict as edict
 
 mnist_cfg = edict({