Update codeformat.sh

[xiezheng-XD]

使用函数精简了代码，并提高可读性

[tencent-adm]

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[nihui]

please fix ci error
codeformat.sh: 14: Syntax error: end of file unexpected (expecting "}")

[xiezheng-XD]

请修复 ci 错误 codeformat.sh: 14: Syntax error: end of file unexpected (expecting "}")

抱歉，之前使用了错误的注释符号，现在应该可以了

[nihui]

Thanks for your contribution !