[fix][backend]fix exp result parse error

[q407994927]

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1 out of 2 committers have signed the CLA.

✅ lsy357
❌ zhangfunzhangfan

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[lsy357]

Thank you for your code! Please merge the code from the main branch, and we will review it as soon as possible.

[wec4dre96-w]

冲突太多了，先rebase下main

[lsy357]

冲突太多了，先rebase下main

rebase 工作量应该很大，可以考虑 merge