golang coding comment specification

Comments are a very important part when writing Golang code. Comments can help others understand your code more easily, and they can also help you organize and debug your code better. Therefore, writing standardized comments is very necessary. This article will introduce the golang coding annotation specifications.

1. Comments should be written above the function or method

There should be a documentation comment above the function or method in Golang. It should describe what the function or method does, as well as the meaning and expected values ​​of the parameters passed in, and may have a description of the return value.

2. Comments should use // or /.../ syntax

In Golang, comments are divided into two types: single-line comments and multiple Line comments. Use // for single-line comments and /.../ for multi-line comments.

For example:

//Single-line comment

/*
Multi-line comment
*/

3. Comment syntax should be simple Clarity

Comment content should be simple and clear, avoid using overly complex terminology or overly lengthy language, so that it can be understood at a glance.

4. The parameters and return values ​​of the function need to be explained

In the function or method, the parameter list and return value need to be explained in detail so that the caller can clearly understand this The role of the function and the meaning of the return value to avoid unnecessary errors and debugging time.

For example:

// GetUserInfo Get user information
//
// Parameters:
// id - user ID
//
/ / Return value:
// user - user information
// err - error message
func GetUserInfo(id int) (user User, err error) {

// ...

}

5. Comments on code snippets should be as detailed and comprehensive as possible

In code snippets, detailed comments should be made to cover the purpose and function of each line of code as much as possible to avoid others not understanding it. Your code is better at attracting other people's attention.

6. Comments are updated in a timely manner when the code is updated

When the code changes, the corresponding comments also need to be updated in a timely manner to avoid confusion. Code comments should be updated simultaneously with the code itself to avoid omissions as much as possible.

7. Special tags

You can add special tags in comments, such as TODO or FIXME, etc., to remind yourself or others that specific problems need to be further processed.

For example:

// TODO: Parameter verification needs to be added

Summary

Comments are very necessary when writing Golang code. Comments can help you better organize and debug your code, and also help others better understand your code. In comments, you should try to explain the functions and details of the code as clearly and concisely as possible so that others can better understand and modify your code. At the same time, comments should be updated in a timely manner to keep them in sync with the code itself.

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