Update qat.rst (#918) (#919)

wanghaoshuang · web-flow · commit a6fc0a085e98 · 2021-11-12T08:42:47.000+08:00
docs：Fix code in doc
diff --git a/docs/zh_cn/api_cn/dygraph/quanter/qat.rst b/docs/zh_cn/api_cn/dygraph/quanter/qat.rst
@@ -251,7 +251,8 @@ QAT
     
 
     .. code-block:: python
-
+        
+        import paddle
         from paddleslim import PTQ
         from paddle.vision.models import mobilenet_v1
         fp32_model = mobilenet_v1(pretrained=True)
