From a15af38a739090b3692201116c13fa114a84359a Mon Sep 17 00:00:00 2001
From: Li Fuchen <lifuchen@baidu.com>
Date: Fri, 25 Sep 2020 17:21:32 +0800
Subject: [PATCH] modified sample code of add_position_encoding to 2.0 (#2683)

* add cn doc of trace API

* modified sample code of add_position_encoding to 2.0
---
 .../api_cn/layers_cn/add_position_encoding_cn.rst    | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/doc/fluid/api_cn/layers_cn/add_position_encoding_cn.rst b/doc/fluid/api_cn/layers_cn/add_position_encoding_cn.rst
index abba3377b..b6eda83b8 100644
--- a/doc/fluid/api_cn/layers_cn/add_position_encoding_cn.rst
+++ b/doc/fluid/api_cn/layers_cn/add_position_encoding_cn.rst
@@ -40,13 +40,13 @@ add_position_encoding
 
 .. code-block:: python
 
-    import paddle.fluid as fluid
+    import numpy as np
+    import paddle
+    import paddle.nn.functional as F
 
-    tensor = fluid.data(
-        name='tensor',
-        shape=[None, 64, 512],
-        dtype='float32')
-    position_tensor = fluid.layers.add_position_encoding(
+    tensor = np.random.randn(16, 32, 64) 
+    tensor = paddle.to_tensor(tensor)
+    position_tensor = F.add_position_encoding(
         input=tensor, alpha=1.0, beta=1.0)
 
 
-- 
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