!8708 fix fix SmoothL1lossGrad beta attr problem.

From: @liangchenghui
Reviewed-by: @kingxian
Signed-off-by: @kingxian

mindspore/ops/operations/_grad_ops.py

@@ -1561,7 +1561,7 @@ class SmoothL1LossGrad(PrimitiveWithInfer):
 
     @prim_attr_register
     def __init__(self, beta=1.0):
-        pass
+        self.add_prim_attr('sigma', beta)
 
     def infer_shape(self, prediction, target, dloss):
         validator.check('prediction shape', prediction, 'target shape', target, Rel.EQ, self.name)

mindspore/ops/operations/array_ops.py

@@ -2159,8 +2159,8 @@ class Slice(PrimitiveWithInfer):
 
     Inputs:
         - **x** (Tensor): The target tensor.
-        - **begin** (tuple): The beginning of the slice. Only constant value is allowed.
-        - **size** (tuple): The size of the slice. Only constant value is allowed.
+        - **begin** (tuple, list): The beginning of the slice. Only constant value is allowed.
+        - **size** (tuple, list): The size of the slice. Only constant value is allowed.
 
     Outputs:
         Tensor, the shape is : input `size`, the data type is the same as input `x`.
@@ -2189,10 +2189,13 @@ class Slice(PrimitiveWithInfer):
             return {'shape': None,
                     'dtype': x['dtype'],
                     'value': None}
+        validator.check_value_type("input begin", begin_v, [tuple, list], self.name)
+        validator.check_value_type("input size", size_v, [tuple, list], self.name)
         for key, value in zip(('begin', 'size'), (begin_v, size_v)):
             validator.check(f'len of {key}', len(value),
                             'len x\'s dim', x_shp_len)
         for i in range(x_shp_len):
+            validator.check_positive_int(size_v[i], f'input size[{i}]')
             if x_shape[i] < begin_v[i] + size_v[i]:
                 y = begin_v[i] + size_v[i]
                 raise ValueError("For '%s' slice shape can not bigger than orign shape %d, %d." %