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[123liuziming]

related to #228

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 75.14793% with 42 lines in your changes missing coverage. Please review.

Project coverage is 80.02%. Comparing base (4262fe6) to head (f516a99).

Files with missing lines	Patch %	Lines
...g/inst-api-semconv/instrumenter/rpc/rpc_metrics.go	75.89%	18 Missing and 9 partials ⚠️
.../instrumenter/experimental/nacos_client_metrics.go	46.42%	10 Missing and 5 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #266      +/-   ##
==========================================
- Coverage   82.36%   80.02%   -2.35%     
==========================================
  Files          20       23       +3     
  Lines         845      976     +131     
==========================================
+ Hits          696      781      +85     
- Misses        122      156      +34     
- Partials       27       39      +12     

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