Fix code docs example result format

mindspore/nn/grad/cell_grad.py

@@ -91,9 +91,11 @@ class Jvp(Cell):
         >>> v = Tensor(np.array([[1, 1], [1, 1]]).astype(np.float32))
         >>> output = Jvp(Net())(x, y, (v, v))
         >>> print(output[0])
-        [[2, 10], [30, 68]]
+        [[ 2. 10.]
+         [30. 68.]]
         >>> print(output[1])
-        [[4, 13], [28, 49]]
+        [[ 4. 13.]
+         [28. 49.]]
     """
     def __init__(self, fn):
         super(Jvp, self).__init__()
@@ -203,9 +205,14 @@ class Vjp(Cell):
         >>> v = Tensor(np.array([[1, 1], [1, 1]]).astype(np.float32))
         >>> output = Vjp(Net())(x, y, v)
         >>> print(output[0])
-        [[2, 10], [30, 68]]
-        >>> print(output[1])
-        ([[3, 12], [27, 48]], [[1, 1], [1, 1]])
+        [[ 2. 10.]
+         [30. 68.]]
+        >>> print(output[1][0])
+        [[ 3. 12.]
+         [27. 48.]]
+        >>> print(output[1][1])
+        [[1. 1.]
+         [1. 1.]]
     """
 
     def __init__(self, fn):