Environment

• Hardware Environment(Ascend/GPU/CPU):

Uncomment only one /device <> line, hit enter to put that in a new line, and remove leading whitespaces from that line:

/device ascend

• Software Environment:
  -- MindSpore version (source or binary):source
  -- Python version (e.g., Python 3.7.5):Python 3.7.5
  -- OS platform and distribution (e.g., Linux Ubuntu 16.04):Linux Ubuntu 16.04
  -- GCC/Compiler version (if compiled from source): gcc 7.5.0

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Describe the current behavior

Describe the expected behavior

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