diff --git a/README.md b/README.md
index e409733..1aaa26a 100644
--- a/README.md
+++ b/README.md
@@ -18,29 +18,19 @@ This operator extracts features for image with [data2vec](https://arxiv.org/abs/
 
 Load an image from path './towhee.jpg' to generate an image embedding. 
 
- *Write the pipeline in simplified style*:
+*Write a pipeline with explicit inputs/outputs name specifications:*
 
 ```python
-import towhee
+from towhee.dc2 import pipe, ops, DataCollection
 
-towhee.glob('./towhee.jpg') \
-      .image_decode.cv2() \
-      .image_embedding.data2vec(model_name='facebook/data2vec-vision-base-ft1k') \
-      .show()
+p = (
+    pipe.input('path')
+        .map('path', 'img', ops.image_decode())
+        .map('img', 'vec', ops.image_embedding.data2vec(model_name='facebook/data2vec-vision-base-ft1k'))
+        .output('img', 'vec')
+)
 
-```
-<img src="./result1.png" alt="result1" style="height:20px;"/>
-
-*Write a same pipeline with explicit inputs/outputs name specifications:*
-
-```python
-import towhee
-
-towhee.glob['path']('./towhee.jpg') \
-      .image_decode.cv2['path', 'img']() \
-      .image_embedding.data2vec['img', 'vec'](model_name='facebook/data2vec-vision-base-ft1k') \
-      .select['img', 'vec']() \
-      .show()
+DataCollection(p('towhee.jpeg')).show()
 ```
 <img src="./result2.png" alt="result2" style="height:60px;"/>