fix_some_docs test=develop (#2552)

doc/paddle/api/paddle/fluid/dygraph/checkpoint/load_dygraph_cn.rst

 .. _cn_api_fluid_dygraph_load_dygraph:
 
-load_dygraph
--------------------------------
+load
+----
 
 
-.. py:function:: paddle.fluid.dygraph.load_dygraph(model_path)
+.. py:function:: paddle.load(model_path, configs=None)
 
 :api_attr: 命令式编程模式（动态图)
 
+该接口用于从磁盘中加载Layer和Optimizer的 ``state_dict`` ，该接口会同时加载 ``model_path + ".pdparams"`` 和 ``model_path + ".pdopt"`` 中的内容。
 
-
-该接口尝试从磁盘中加载参数或优化器的 ``dict`` 。
-
-该接口会同时加载 ``model_path + ".pdparams"`` 和 ``model_path + ".pdopt"`` 中的内容。
+.. note::
+    由于一些历史原因，如果从 ``paddle.io.save_inference_model`` 的存储结果中载入 ``state_dict`` ，动态图模式下参数的结构性变量名将无法被恢复。并且在将载入的 ``state_dict`` 配置到当前Layer中时，需要配置 ``Layer.set_state_dict`` 的参数 ``use_structured_name=False`` 。
 
 参数:
-    - **model_path**  (str) – 保存state_dict的文件前缀。该路径不应该包括后缀 ``.pdparams`` 或 ``.pdopt``。
+    - **model_path** (str) – 保存state_dict的文件前缀。该路径不应该包括后缀 ``.pdparams`` 或 ``.pdopt``。
+    - **configs** (SaveLoadConfig, 可选) - 用于指定额外配置选项的 :ref:`cn_api_fluid_dygraph_jit_SaveLoadConfig` 对象，这些选项主要是用于兼容 ``paddle.io.save_inference_model`` 存储模型的格式。默认为 ``None``。
 
 
-返回: 两个 ``dict`` ，即从文件中恢复的参数 ``dict`` 和优化器 ``dict``
+返回: 两个 ``dict`` ，即从文件中恢复的模型参数 ``dict`` 和优化器参数 ``dict``，如果只找到其中一个的存储文件，另一个返回None
 
-- para_dict: 从文件中恢复的参数 ``dict``
-- opti_dict: 从文件中恢复的优化器 ``dict``
+- param_dict: 从文件中恢复的模型参数 ``dict``
+- opt_dict: 从文件中恢复的优化器参数 ``dict``
 
 返回类型: tuple(dict, dict)
   
@@ -29,18 +29,24 @@ load_dygraph
 
 .. code-block:: python
 
-    import paddle.fluid as fluid
+    import paddle
+            
+    paddle.disable_static()
+
+    emb = paddle.nn.Embedding([10, 10])
+
+    state_dict = emb.state_dict()
+    paddle.save(state_dict, "paddle_dy")
 
-    with fluid.dygraph.guard():
-        emb = fluid.dygraph.Embedding([10, 10])
-        state_dict = emb.state_dict()
-        fluid.save_dygraph( state_dict, "paddle_dy")
-        adam = fluid.optimizer.Adam( learning_rate = fluid.layers.noam_decay( 100, 10000) ,
-                                     parameter_list = emb.parameters() )
-        state_dict = adam.state_dict()
-        fluid.save_dygraph( state_dict, "paddle_dy")
+    scheduler = paddle.optimizer.lr_scheduler.NoamLR(
+        d_model=0.01, warmup_steps=100, verbose=True)
+    adam = paddle.optimizer.Adam(
+        learning_rate=scheduler,
+        parameters=emb.parameters())
+    state_dict = adam.state_dict()
+    paddle.save(state_dict, "paddle_dy")
 
-        para_state_dict, opti_state_dict = fluid.load_dygraph( "paddle_dy")
+    para_state_dict, opti_state_dict = paddle.load("paddle_dy")
 
 
 

doc/paddle/api/paddle/fluid/dygraph/io/TranslatedLayer_cn.rst

@@ -15,70 +15,180 @@ TranslatedLayer
     .. code-block:: python
 
         import numpy as np
-        import paddle.fluid as fluid
-        from paddle.fluid.dygraph import Linear
-        from paddle.fluid.dygraph import declarative
-        BATCH_SIZE = 32
-        BATCH_NUM = 20
-        def random_batch_reader():
-            def _get_random_images_and_labels(image_shape, label_shape):
-                image = np.random.random(size=image_shape).astype('float32')
-                label = np.random.random(size=label_shape).astype('int64')
+        import paddle
+        import paddle.nn as nn
+        import paddle.optimizer as opt
+
+        BATCH_SIZE = 16
+        BATCH_NUM = 4
+        EPOCH_NUM = 4
+
+        IMAGE_SIZE = 784
+        CLASS_NUM = 10
+
+        # define a random dataset
+        class RandomDataset(paddle.io.Dataset):
+            def __init__(self, num_samples):
+                self.num_samples = num_samples
+
+            def __getitem__(self, idx):
+                image = np.random.random([IMAGE_SIZE]).astype('float32')
+                label = np.random.randint(0, CLASS_NUM - 1, (1, )).astype('int64')
                 return image, label
-            def __reader__():
-                for _ in range(BATCH_NUM):
-                    batch_image, batch_label = _get_random_images_and_labels(
-                        [BATCH_SIZE, 784], [BATCH_SIZE, 1])
-                    yield batch_image, batch_label
-            return __reader__
-        class LinearNet(fluid.dygraph.Layer):
-            def __init__(self, in_size, out_size):
+
+            def __len__(self):
+                return self.num_samples
+
+        class LinearNet(nn.Layer):
+            def __init__(self):
                 super(LinearNet, self).__init__()
-                self._linear = Linear(in_size, out_size)
-            @declarative
+                self._linear = nn.Linear(IMAGE_SIZE, CLASS_NUM)
+
+            @paddle.jit.to_static
             def forward(self, x):
                 return self._linear(x)
-        # 开启命令式编程模式
-        fluid.enable_dygraph() 
-        # 1. 训练存储模型.
-        # 创建网络
-        net = LinearNet(784, 1)
-        adam = fluid.optimizer.AdamOptimizer(learning_rate=0.1, parameter_list=net.parameters())
-        # 创建DataLoader
-        train_loader = fluid.io.DataLoader.from_generator(capacity=5)
-        train_loader.set_batch_generator(random_batch_reader())
-        # 训练
-        for data in train_loader():
-            img, label = data
-            label.stop_gradient = True
-            cost = net(img)
-            loss = fluid.layers.cross_entropy(cost, label)
-            avg_loss = fluid.layers.mean(loss)
-            avg_loss.backward()
-            adam.minimize(avg_loss)
-            net.clear_gradients()
+
+        def train(layer, loader, loss_fn, opt):
+            for epoch_id in range(EPOCH_NUM):
+                for batch_id, (image, label) in enumerate(loader()):
+                    out = layer(image)
+                    loss = loss_fn(out, label)
+                    loss.backward()
+                    opt.step()
+                    opt.clear_grad()
+                    print("Epoch {} batch {}: loss = {}".format(
+                        epoch_id, batch_id, np.mean(loss.numpy())))
+
+        # enable dygraph mode
+        place = paddle.CPUPlace()
+        paddle.disable_static(place) 
+
+        # 1. train & save model.
+
+        # create network
+        layer = LinearNet()
+        loss_fn = nn.CrossEntropyLoss()
+        adam = opt.Adam(learning_rate=0.001, parameters=layer.parameters())
+
+        # create data loader
+        dataset = RandomDataset(BATCH_NUM * BATCH_SIZE)
+        loader = paddle.io.DataLoader(dataset,
+            places=place,
+            batch_size=BATCH_SIZE,
+            shuffle=True,
+            drop_last=True,
+            num_workers=2)
+
+        # train
+        train(layer, loader, loss_fn, adam)
+
+        # save
         model_path = "linear.example.model"
-        fluid.dygraph.jit.save(
-            layer=net,
-            model_path=model_path,
-            input_spec=[img])
-        # 2. 载入模型构建TranslatedLayer
-        translated_layer = fluid.dygraph.jit.load(model_path)
-        # 预测
+        paddle.jit.save(layer, model_path)
+
+        # 2. load model as TranslatedLayer
+
+        # load
+        translated_layer = paddle.jit.load(model_path)
+
+        # inference
         translated_layer.eval()
-        x = fluid.dygraph.to_variable(np.random.random((1, 784)).astype('float32'))
+        x = paddle.randn([1, IMAGE_SIZE], 'float32')
         pred = translated_layer(x)
-        # fine-tune训练
+
+        # fine-tune
         translated_layer.train()
-        adam = fluid.optimizer.AdamOptimizer(learning_rate=0.1, parameter_list=translated_layer.parameters())
-        train_loader = fluid.io.DataLoader.from_generator(capacity=5)
-        train_loader.set_batch_generator(random_batch_reader())
-        for data in train_loader():
-            img, label = data
-            label.stop_gradient = True
-            cost = translated_layer(img)
-            loss = fluid.layers.cross_entropy(cost, label)
-            avg_loss = fluid.layers.mean(loss)
-            avg_loss.backward()
-            adam.minimize(avg_loss)
-            translated_layer.clear_gradients()
+        adam = opt.Adam(learning_rate=0.001, parameters=translated_layer.parameters())
+        train(translated_layer, loader, loss_fn, adam)
+
+
+.. py:method:: program(method_name='forward'):
+
+获取TranslatedLayer中指定方法对应的Program。
+
+参数：
+    - **method_name** (string) - 要获取的Porgram对应的方法名。默认值为"forward"。
+
+返回：Program
+
+返回类型：Program
+
+**示例代码：**
+    .. code-block:: python
+
+        import numpy as np
+        import paddle
+        import paddle.nn as nn
+        import paddle.optimizer as opt
+
+        BATCH_SIZE = 16
+        BATCH_NUM = 4
+        EPOCH_NUM = 4
+
+        IMAGE_SIZE = 784
+        CLASS_NUM = 10
+
+        # define a random dataset
+        class RandomDataset(paddle.io.Dataset):
+            def __init__(self, num_samples):
+                self.num_samples = num_samples
+
+            def __getitem__(self, idx):
+                image = np.random.random([IMAGE_SIZE]).astype('float32')
+                label = np.random.randint(0, CLASS_NUM - 1, (1, )).astype('int64')
+                return image, label
+
+            def __len__(self):
+                return self.num_samples
+
+        class LinearNet(nn.Layer):
+            def __init__(self):
+                super(LinearNet, self).__init__()
+                self._linear = nn.Linear(IMAGE_SIZE, CLASS_NUM)
+
+            @paddle.jit.to_static
+            def forward(self, x):
+                return self._linear(x)
+
+        def train(layer, loader, loss_fn, opt):
+            for epoch_id in range(EPOCH_NUM):
+                for batch_id, (image, label) in enumerate(loader()):
+                    out = layer(image)
+                    loss = loss_fn(out, label)
+                    loss.backward()
+                    opt.step()
+                    opt.clear_grad()
+                    print("Epoch {} batch {}: loss = {}".format(
+                        epoch_id, batch_id, np.mean(loss.numpy())))
+
+        # enable dygraph mode
+        place = paddle.CPUPlace()
+        paddle.disable_static(place) 
+
+        # create network
+        layer = LinearNet()
+        loss_fn = nn.CrossEntropyLoss()
+        adam = opt.Adam(learning_rate=0.001, parameters=layer.parameters())
+
+        # create data loader
+        dataset = RandomDataset(BATCH_NUM * BATCH_SIZE)
+        loader = paddle.io.DataLoader(dataset,
+            places=place,
+            batch_size=BATCH_SIZE,
+            shuffle=True,
+            drop_last=True,
+            num_workers=2)
+
+        # train
+        train(layer, loader, loss_fn, adam)
+
+        # save
+        model_path = "linear.example.model"
+        paddle.jit.save(layer, model_path)
+
+        # load
+        translated_layer = paddle.jit.load(model_path)
+
+        # get program
+        program = translated_layer.program()
+        print(program)

doc/paddle/api/paddle/fluid/dygraph/layers/Layer_cn.rst

@@ -391,13 +391,14 @@ buffer是一个非参数类型的变量，不会被优化器更新，但在评
         state_dict = emb.state_dict()
         fluid.save_dygraph(state_dict, "paddle_dy")
 
-.. py:method:: set_dict(stat_dict, include_sublayers=True)
+.. py:method:: set_state_dict(state_dict, include_sublayers=True, use_structured_name=True)
 
-根据传入的 ``stat_dict`` 设置参数和可持久性buffers。 所有参数和buffers将由 ``stat_dict`` 中的 ``Tensor`` 设置。
+根据传入的 ``state_dict`` 设置参数和可持久性buffers。 所有参数和buffers将由 ``state_dict`` 中的 ``Tensor`` 设置。
 
 参数：
     - **state_dict** (dict) - 包含所有参数和可持久性buffers的dict。
     - **include_sublayers** (bool, 可选) - 如果设置为True，则还包括子层的参数和buffers。 默认值：True。
+    - **use_structured_name** (bool, 可选) - 如果设置为True，将使用Layer的结构性变量名作为dict的key，否则将使用Parameter或者Buffer的变量名作为key。默认值：True。
 
 返回：None
 
@@ -405,36 +406,16 @@ buffer是一个非参数类型的变量，不会被优化器更新，但在评
 
 .. code-block:: python
 
-    import paddle.fluid as fluid
-    with fluid.dygraph.guard():
-        emb = fluid.dygraph.Embedding([10, 10])
-        state_dict = emb.state_dict()
-        fluid.save_dygraph(state_dict, "paddle_dy")
-        para_state_dict, _ = fluid.load_dygraph("paddle_dy")
-        emb.set_dict(para_state_dict)
-
-.. py:method:: load_dict(stat_dict, include_sublayers=True)
-
-.. warning::
-    该函数将被弃用。请使用set_dict函数。
-
-根据传入的 ``stat_dict`` 设置参数和可持久性buffers。 所有参数和buffers将由 ``stat_dict`` 中的 ``Tensor`` 设置。
-
-参数：
-    - **state_dict** (dict) - 包含所有参数和可持久性buffers的dict。
-    - **include_sublayers** (bool, 可选) - 如果设置为True，则还包括子层的参数和buffers。 默认值：True。
-
-返回：None
+    import paddle
+                
+    paddle.disable_static()
+    
+    emb = paddle.nn.Embedding([10, 10])
 
-**代码示例**
-
-.. code-block:: python
+    state_dict = emb.state_dict()
+    paddle.save(state_dict, "paddle_dy")
+    
+    para_state_dict, _ = paddle.load("paddle_dy")
 
-    import paddle.fluid as fluid
-    with fluid.dygraph.guard():
-        emb = fluid.dygraph.Embedding([10, 10])
-        state_dict = emb.state_dict()
-        fluid.save_dygraph(state_dict, "paddle_dy")
-        para_state_dict, _ = fluid.load_dygraph("paddle_dy")
-        emb.load_dict(para_state_dict)
+    emb.set_state_dict(para_state_dict)
 

doc/paddle/api/paddle/jit/SaveLoadConfig_cn.rst

+.. _cn_api_fluid_dygraph_jit_SaveLoadConfig:
+
+SaveLoadConfig
+--------------
+
+.. py:class:: paddle.SaveLoadConfig()
+
+用于配置接口 :ref:`cn_api_fluid_dygraph_jit_save` 和 :ref:`cn_api_fluid_dygraph_jit_load` 存储载入 :ref:`cn_api_fluid_dygraph_TranslatedLayer` 时的附加选项。
+
+**示例代码：**
+
+    1. 在存储模型时使用 ``SaveLoadConfig``
+
+    .. code-block:: python
+
+        import numpy as np
+        import paddle.fluid as fluid
+        from paddle.fluid.dygraph import Linear
+        from paddle.fluid.dygraph import declarative
+        class SimpleNet(fluid.dygraph.Layer):
+            def __init__(self, in_size, out_size):
+                super(SimpleNet, self).__init__()
+                self._linear = Linear(in_size, out_size)
+            @declarative
+            def forward(self, x):
+                y = self._linear(x)
+                z = self._linear(y)
+                return z
+        # 开启命令式编程模式
+        fluid.enable_dygraph() 
+        # 训练模型
+        net = SimpleNet(8, 8)
+        adam = fluid.optimizer.AdamOptimizer(learning_rate=0.1, parameter_list=net.parameters())
+        x = fluid.dygraph.to_variable(np.random.random((4, 8)).astype('float32'))
+        for i in range(10):
+            out = net(x)
+            loss = fluid.layers.mean(out)
+            loss.backward()
+            adam.minimize(loss)
+            net.clear_gradients()
+        # 在存储模型时使用SaveLoadConfig
+        model_path = "simplenet.example.model"
+        configs = fluid.dygraph.jit.SaveLoadConfig()
+        configs.model_filename = "__simplenet__"
+        fluid.dygraph.jit.save(
+            layer=net,
+            model_path=model_path,
+            input_spec=[x],
+            configs=configs)
+
+    2. 在载入模型时使用 ``SaveLoadConfig``
+
+    .. code-block:: python
+
+        import numpy as np
+        import paddle.fluid as fluid
+        # 开启命令式编程模式
+        fluid.enable_dygraph() 
+        # 在载入模型时使用SaveLoadconfig
+        model_path = "simplenet.example.model"
+        configs = fluid.dygraph.jit.SaveLoadConfig()
+        configs.model_filename = "__simplenet__"
+        infer_net = fluid.dygraph.jit.load(model_path, configs=configs)
+        # 预测
+        x = fluid.dygraph.to_variable(np.random.random((4, 8)).astype('float32'))
+        pred = infer_net(x)
+
+属性
+::::::::::::
+
+.. py:attribute:: output_spec
+
+选择保存模型（ :ref:`cn_api_fluid_dygraph_TranslatedLayer` ）的输出变量，通过指定的这些变量能够使模型仅计算特定的结果。
+默认情况下，原始 :ref:`cn_api_fluid_dygraph_Layer` 的forward方法的所有返回变量都将配置为存储后模型 :ref:`cn_api_fluid_dygraph_TranslatedLayer` 的输出变量。
+
+``output_spec`` 属性类型需要是 ``list[Variable]``。如果输入的 ``output_spec`` 列表不是原始 :ref:`cn_api_fluid_dygraph_Layer` 的forward方法的所有返回变量，
+将会依据输入的 ``output_spec`` 列表对存储的模型进行裁剪。
+
+.. note::
+    ``output_spec`` 属性仅在存储模型时使用。
+
+**示例代码：**
+    .. code-block:: python
+
+        import numpy as np
+        import paddle.fluid as fluid
+        from paddle.fluid.dygraph import Linear
+        from paddle.fluid.dygraph import declarative
+        class SimpleNet(fluid.dygraph.Layer):
+            def __init__(self, in_size, out_size):
+                super(SimpleNet, self).__init__()
+                self._linear = Linear(in_size, out_size)
+            @declarative
+            def forward(self, x):
+                y = self._linear(x)
+                z = self._linear(y)
+                loss = fluid.layers.mean(z)
+                return z, loss
+        # 开启命令式编程模式
+        fluid.enable_dygraph() 
+        # 训练模型
+        net = SimpleNet(8, 8)
+        adam = fluid.optimizer.AdamOptimizer(learning_rate=0.1, parameter_list=net.parameters())
+        x = fluid.dygraph.to_variable(np.random.random((4, 8)).astype('float32'))
+        for i in range(10):
+            out, loss = net(x)
+            loss.backward()
+            adam.minimize(loss)
+            net.clear_gradients()
+        # 使用SaveLoadconfig.output_spec
+        model_path = "simplenet.example.model.output_spec"
+        configs = fluid.dygraph.jit.SaveLoadConfig()
+        # 仅在存储模型中保留预测结果，丢弃loss
+        configs.output_spec = [out]
+        fluid.dygraph.jit.save(
+            layer=net,
+            model_path=model_path,
+            input_spec=[x],
+            configs=configs)
+        infer_net = fluid.dygraph.jit.load(model_path, configs=configs)
+        x = fluid.dygraph.to_variable(np.random.random((4, 8)).astype('float32'))
+        # 仅有预测结果输出
+        pred = infer_net(x)
+
+
+.. py:attribute:: model_filename
+
+存储转写 :ref:`cn_api_fluid_dygraph_Layer` 模型结构 ``Program`` 的文件名称。默认文件名为 ``__model__``。
+
+**示例代码**
+    .. code-block:: python
+
+        import numpy as np
+        import paddle.fluid as fluid
+        from paddle.fluid.dygraph import Linear
+        from paddle.fluid.dygraph import declarative
+        class SimpleNet(fluid.dygraph.Layer):
+            def __init__(self, in_size, out_size):
+                super(SimpleNet, self).__init__()
+                self._linear = Linear(in_size, out_size)
+            @declarative
+            def forward(self, x):
+                y = self._linear(x)
+                z = self._linear(y)
+                return z
+        # 开启命令式编程模式
+        fluid.enable_dygraph() 
+        # 训练模型
+        net = SimpleNet(8, 8)
+        adam = fluid.optimizer.AdamOptimizer(learning_rate=0.1, parameter_list=net.parameters())
+        x = fluid.dygraph.to_variable(np.random.random((4, 8)).astype('float32'))
+        for i in range(10):
+            out = net(x)
+            loss = fluid.layers.mean(out)
+            loss.backward()
+            adam.minimize(loss)
+            net.clear_gradients()
+        model_path = "simplenet.example.model.model_filename"
+        configs = fluid.dygraph.jit.SaveLoadConfig()
+        configs.model_filename = "__simplenet__"
+        # 配置configs.model_filename存储模型
+        fluid.dygraph.jit.save(
+            layer=net,
+            model_path=model_path,
+            input_spec=[x],
+            configs=configs)
+        # [结果] 存储模型目录文件包括:
+        # __simplenet__  __variables__  __variables.info__
+        # 配置configs.model_filename载入模型
+        infer_net = fluid.dygraph.jit.load(model_path, configs=configs)
+        x = fluid.dygraph.to_variable(np.random.random((4, 8)).astype('float32'))
+        pred = infer_net(x)
+
+
+.. py:attribute:: params_filename
+
+存储转写 :ref:`cn_api_fluid_dygraph_Layer` 所有持久参数（包括 ``Parameters`` 和持久的 ``Buffers``）的文件名称。默认文件名称为 ``__variable__``。
+
+**示例代码**
+    .. code-block:: python
+
+        import numpy as np
+        import paddle.fluid as fluid
+        from paddle.fluid.dygraph import Linear
+        from paddle.fluid.dygraph import declarative
+        class SimpleNet(fluid.dygraph.Layer):
+            def __init__(self, in_size, out_size):
+                super(SimpleNet, self).__init__()
+                self._linear = Linear(in_size, out_size)
+            @declarative
+            def forward(self, x):
+                y = self._linear(x)
+                z = self._linear(y)
+                return z
+        # 开启命令式编程模式
+        fluid.enable_dygraph() 
+        # 训练模型
+        net = SimpleNet(8, 8)
+        adam = fluid.optimizer.AdamOptimizer(learning_rate=0.1, parameter_list=net.parameters())
+        x = fluid.dygraph.to_variable(np.random.random((4, 8)).astype('float32'))
+        for i in range(10):
+            out = net(x)
+            loss = fluid.layers.mean(out)
+            loss.backward()
+            adam.minimize(loss)
+            net.clear_gradients()
+        model_path = "simplenet.example.model.params_filename"
+        configs = fluid.dygraph.jit.SaveLoadConfig()
+        configs.params_filename = "__params__"
+        # 配置configs.params_filename存储模型
+        fluid.dygraph.jit.save(
+            layer=net,
+            model_path=model_path,
+            input_spec=[x],
+            configs=configs)
+        # [结果] 存储模型目录文件包括:
+        # __model__  __params__  __variables.info__
+        # 配置configs.params_filename载入模型
+        infer_net = fluid.dygraph.jit.load(model_path, configs=configs)
+        x = fluid.dygraph.to_variable(np.random.random((4, 8)).astype('float32'))
+        pred = infer_net(x)
+
+
+.. py:attribute:: separate_params
+
+配置是否将 :ref:`cn_api_fluid_dygraph_Layer` 的参数存储为分散的文件。
+（这是为了兼容接口 :ref:`cn_api_fluid_io_save_inference_model` 的行为）
+
+如果设置为 ``True`` ，每个参数将会被存储为一个文件，文件名为参数名，同时``SaveLoadConfig.params_filename`` 指定的文件名将不会生效。默认为 ``False``。
+
+**示例代码**
+    .. code-block:: python
+
+        import numpy as np
+        import paddle.fluid as fluid
+        from paddle.fluid.dygraph import Linear
+        from paddle.fluid.dygraph import declarative
+        class SimpleNet(fluid.dygraph.Layer):
+            def __init__(self, in_size, out_size):
+                super(SimpleNet, self).__init__()
+                self._linear = Linear(in_size, out_size)
+            @declarative
+            def forward(self, x):
+                y = self._linear(x)
+                z = self._linear(y)
+                return z
+        # 开启命令式编程模式
+        fluid.enable_dygraph() 
+        # 训练模型
+        net = SimpleNet(8, 8)
+        adam = fluid.optimizer.AdamOptimizer(learning_rate=0.1, parameter_list=net.parameters())
+        x = fluid.dygraph.to_variable(np.random.random((4, 8)).astype('float32'))
+        for i in range(10):
+            out = net(x)
+            loss = fluid.layers.mean(out)
+            loss.backward()
+            adam.minimize(loss)
+            net.clear_gradients()
+        model_path = "simplenet.example.model.separate_params"
+        configs = fluid.dygraph.jit.SaveLoadConfig()
+        configs.separate_params = True
+        # 配置configs.separate_params存储模型
+        fluid.dygraph.jit.save(
+            layer=net,
+            model_path=model_path,
+            input_spec=[x],
+            configs=configs)
+        # [结果] 存储模型目录文件包括:
+        # linear_0.b_0  linear_0.w_0  __model__  __variables.info__
+        # 配置configs.params_filename载入模型
+        infer_net = fluid.dygraph.jit.load(model_path, configs=configs)
+        x = fluid.dygraph.to_variable(np.random.random((4, 8)).astype('float32'))
+        pred = infer_net(x)
+
+
+.. py:attribute:: keep_name_table
+    
+配置是否保留 ``paddle.load`` 载入结果中 ``structured_name`` 到真实的参数变量名的映射表。这个映射表是调用 ``paddle.save`` 时存储的，一般仅用于调试，移除此映射表不影响真实的训练和预测。默认情况下不会保留在 ``paddle.load`` 的结果中。默认值为False。
+
+.. note::
+    该配置仅用于 ``paddle.load`` 方法。
+
+**示例代码**
+    .. code-block:: python
+
+        import paddle
+            
+        paddle.disable_static()
+
+        linear = paddle.nn.Linear(5, 1)
+
+        state_dict = linear.state_dict()
+        paddle.save(state_dict, "paddle_dy")
+
+        configs = paddle.SaveLoadConfig()
+        configs.keep_name_table = True
+        para_state_dict, _ = paddle.load("paddle_dy", configs)
+
+        print(para_state_dict)
+        # the name_table is 'StructuredToParameterName@@'
+        # {'bias': array([0.], dtype=float32), 
+        #  'StructuredToParameterName@@': 
+        #     {'bias': u'linear_0.b_0', 'weight': u'linear_0.w_0'}, 
+        #  'weight': array([[ 0.04230034],
+        #     [-0.1222527 ],
+        #     [ 0.7392676 ],
+        #     [-0.8136974 ],
+        #     [ 0.01211023]], dtype=float32)}