Created by: peterzsj6

欢迎您对PaddlePaddle提出建议，非常感谢您对PaddlePaddle的贡献！ 在留下您的建议时，辛苦您同步提供如下信息：

• 版本、环境信息 1）PaddlePaddle版本：请提供您的PaddlePaddle版本号，例如1.1 2）CPU/GPU：您是否使用GPU进行训练，如是，请提供您的CUDA和cuDNN版本号 3）系统环境：请您描述系统类型、版本，例如Mac OS 10.14 注：您可以通过执行summary_env.py获取以上信息。
• 复现信息：如为报错，请给出复现环境、复现步骤
• 建议描述：请您详细描述，您认为需优化的功能

Thank you for contributing to PaddlePaddle. Before submitting the issue, you could search issue in the github in case that there was a similar issue submitted or resolved before. Please make sure that this is a feature request. System information -PaddlePaddle version （eg.1.1）or CommitID -CPU: including CPUMKL/OpenBlas/MKLDNN version -GPU: including CUDA/CUDNN version -OS Platform (eg.Mac OS 10.14) Note: You can get most of the information by running summary_env.py. To Reproduce Steps to reproduce the behavior Describe the feature and the current behavior/state. Any Other info.