Use camel case instead of snake case

[luckymrwang]

What type of PR is this?

Uncomment only one /kind <> line, hit enter to put that in a new line, and remove leading whitespace from that line:
/kind bug
/kind documentation
/kind enhancement
/kind good-first-issue
/kind feature
/kind question
/kind design
/sig ai
/sig iot
/sig network
/sig storage
/sig storage

/enhancement

What this PR does / why we need it:

Use camel case instead of snake case. Keep code unification.

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Code Style

Does this PR introduce a user-facing change?

other Note

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In response to this:

What type of PR is this?

Uncomment only one /kind <> line, hit enter to put that in a new line, and remove leading whitespace from that line:
/kind bug
/kind documentation
/kind enhancement
/kind good-first-issue
/kind feature
/kind question
/kind design
/sig ai
/sig iot
/sig network
/sig storage
/sig storage

/enhancement

What this PR does / why we need it:

Use camel case instead of snake case. Keep code unification.

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Code Style

Does this PR introduce a user-facing change?

other Note

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[luckymrwang]

/assign @huangyuqi

[Congrool]

/lgtm

[rambohe-ch]

/approve

[openyurt-bot]

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This pull-request has been approved by: luckymrwang, rambohe-ch

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