fix doc

mindspore/ops/primitive.py

@@ -94,11 +94,19 @@ class Primitive(Primitive_):
 
     def add_prim_attr(self, name, value):
         """
-        Adds primitive attribute.
+        Add primitive attribute.
 
         Args:
             name (str): Attribute Name.
             value (Any): Attribute value.
+
+        Example:
+            >>>import mindspore.ops as P
+            >>>a = P.Add()
+            >>>a = a.add_prim_attr("attr",1)
+            >>>out = a.attrs["attr"]
+            >>>print(out)
+            1
         """
         self.__dict__[name] = value
         self.attrs[name] = value
@@ -107,10 +115,17 @@ class Primitive(Primitive_):
 
     def del_prim_attr(self, name):
         """
-        Del primitive attribute.
+        Delete primitive attribute.
 
         Args:
             name (str): Attribute Name.
+        Example:
+            >>>import mindspore.ops as P
+            >>>a = P.Add()
+            >>>a = a.add_prim_attr("attr",1)
+            >>>a = a.del_prim_attr("attr")
+            >>>a.attrs
+            {'input_names': ['x', 'y'], 'output_names' : ['output']}
         """
         if name in self.__dict__ and name in self.attrs:
             del self.__dict__[name]
@@ -127,7 +142,7 @@ class Primitive(Primitive_):
             In other parallel modes, please set it to be 0.
 
         Args:
-            stage (int): The stage id for the current operation
+            stage (int): The stage id for the current operation.
         """
         self.add_prim_attr("stage", stage)
         return self
@@ -165,6 +180,12 @@ class Primitive(Primitive_):
 
         Args:
             instance_name (str): Instance name of primitive operator set by user.
+        Example:
+            >>>import mindspore.ops as P
+            >>>a = P.Add()
+            >>>a.set_prim_instance_name("add")
+            >>>a.instance_name
+            'add'
         """
         self.set_instance_name(instance_name)
         self.instance_name = instance_name
@@ -188,8 +209,8 @@ class Primitive(Primitive_):
 
         Returns:
             A tuple consisting of two elements.
-            The first element means if the primitive can be calculated in compiling stage
-            the second element is calculated result .
+            The first element means if the primitive can be calculated in compiling stage,
+            the second element is calculated result.
 
         Examples:
             >>> class AddN(Primitive):
@@ -234,11 +255,19 @@ class Primitive(Primitive_):
 
     def init_prim_io_names(self, inputs, outputs):
         """
-        Initializes the name of inputs and outputs of Tensor or attributes.
+        Initialize the name of inputs and outputs of Tensor or attributes.
 
         Args:
             inputs (list[str]): list of inputs names.
             outputs (list[str]): list of outputs names.
+        Example:
+            >>>import mindspore.ops as P
+            >>>a = P.Add()
+            >>>a.init_prim_io_names(["x","y"],["sum"])
+            >>>a.input_names
+            ['x','y']
+            >>>a.output_names
+            ['sum']
         """
         # for checking para names with kernel implementation
         self.add_prim_attr("input_names", inputs)
@@ -263,6 +292,12 @@ class Primitive(Primitive_):
 
         Args:
             mode (bool): Specifies whether the primitive is recomputed. Default: True.
+        Example:
+            >>>import mindspore.ops as P
+            >>>a = P.Add()
+            >>>a = a.recompute()
+            >>>a.recompute
+            True
         """
         if context.get_context("mode") == context.PYNATIVE_MODE:
             raise TypeError("Recompute is not supported in pynative mode currently.")