add blank lines

python/paddle/tensor/creation.py

@@ -1936,9 +1936,11 @@ def triu_indices(row, col=None, offset=0, dtype='int64'):
         col (int, optional): The input x which is a int number describe the number of col of the matrix.
             default value for col is None, then it will be set equal to row, indicting a square matix.
         offset (int, optional): The offset to consider, default value is 0.
+
             - If offset = 0, all elements on and below the main diagonal are retained.
             - If offset > 0, include just as few diagonals above the main diagonal.
             - If offset < 0, excludes just as few diagonals below the main diagonal.
+
         dtype (str|np.dtype|paddle.dtype, optional): the data type of the output tensor,
             can be int32, int64, default value is int64.
     Returns: