experimental feature: error status, test=develop#35624

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Shixiaowei02 merged 4 commits intoPaddlePaddle:developfrom

Shixiaowei02:dev/error

Sep 14, 2021

Commits on Sep 9, 2021

Commits on Sep 10, 2021

polish codes, test=develop
Shixiaowei02
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Commits on Sep 13, 2021

rename funcs, test=develop
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