diff --git a/README.md b/README.md
index 5c88350..e5bbc81 100644
--- a/README.md
+++ b/README.md
@@ -18,28 +18,18 @@ This operator generates the caption with [ExpansionNet v2](https://arxiv.org/abs
 
 Load an image from path './image.jpg' to generate the caption. 
 
- *Write the pipeline in simplified style*:
-
+*Write a pipeline with explicit inputs/outputs name specifications:*
 ```python
-import towhee
-
-towhee.glob('./image.jpg') \
-      .image_decode() \
-      .image_captioning.expansionnet_v2(model_name='expansionnet_rf') \
-      .show()
-```
-<img src="./cap.png" alt="result1" style="height:20px;"/>
+from towhee.dc2 import pipe, ops, DataCollection
 
-*Write a same pipeline with explicit inputs/outputs name specifications:*
-
-```python
-import towhee
+p = (
+    pipe.input('url')
+    .map('url', 'img', ops.image_decode.cv2_rgb())
+    .map('img', 'text', ops.image_captioning.expansionnet_v2(model_name='expansionnet_rf'))
+    .output('img', 'text')
+)
 
-towhee.glob['path']('./image.jpg') \
-      .image_decode['path', 'img']() \
-      .image_captioning.expansionnet_v2['img', 'text'](model_name='expansionnet_rf') \
-      .select['img', 'text']() \
-      .show()
+DataCollection(p('./image.jpg')).show()
 ```
 <img src="./tabular.png" alt="result2" style="height:60px;"/>