Improve existing code quality

[bokket]

C++ has some static detection tools, I use the open source cppcheck to check the current code quality.It is not satisfactory, it will cause some performance loss,at least we have to be able to achieve effective c++ in some aspects.I'm already working and researching this,I will list a few rules,but I will follow the contribution guidelines #7, if you have no objections, please allow me to do this.@hsluoyz @xcaptain

1.Class object has a constructor with 1 argument that should use Keyword:explicit.
2.Exception should be caught by reference.
https://stackoverflow.com/questions/2522299/c-catch-blocks-catch-exception-by-value-or-reference
3.Prefer prefix ++/-- operators for non-primitive types.
https://stackoverflow.com/questions/631506/does-pre-and-post-increment-decrement-operators-in-c-have-same-performance-in
4.Variable is assigned in constructor body. Consider performing initialization in initialization list.
https://stackoverflow.com/questions/9903248/initializing-fields-in-constructor-initializer-list-vs-constructor-body
5.Function parameter value should be passed by reference.
https://stackoverflow.com/questions/10231349/are-the-days-of-passing-const-stdstring-as-a-parameter-over
6.Applying size_type as a subscript when using string and vector or use the Keyword auto
https://stackoverflow.com/questions/1181079/stringsize-type-instead-of-int
7.The byte defined in the ip_parse folder has been implemented in the std library as std::byte, which is recommended to be written as Byte
8.Avoiding c-style type casting
https://stackoverflow.com/questions/3278441/c-type-casting
https://stackoverflow.com/questions/332030/when-should-static-cast-dynamic-cast-const-cast-and-reinterpret-cast-be-used/332086#332086
and so on...

There are some things not mentioned, I will continue to add, submit pr after the test

[xcaptain]

I think we can following modern C++ coding guide line, no need to keep compatible with old C style.