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This article shows you how to use Switch in Go language. The content is concise and easy to understand. It will definitely make your eyes shine. I hope you can gain something from the detailed introduction of this article.

I. Distinction

The switch statement is a very common statement in the language, but the use of it in Go and C++ is really different, and the gap is very large.

1. First from the above, C++, switch followed by parentheses, Go after no parentheses, or even omitted.

2. The variable type after switch must be an integer in C++ or a data type that can be converted to an integer by default. Go can be any type.

3. In C++, the case is usually followed by a break to terminate the current case, otherwise the code of the next case continues to be executed. In Go, there is no break by default, and the current case will be terminated directly. If you want to merge in the next case, you need to add the fallthrough keyword.

II. Examples

The example here is mainly Go.

1. String as a type, distinguish between use, case after no break results display.

2. After the introduction of fallthrough, it leads to different results

Example 1 Two code segments merged

Example 2 Two conditions merge

3. switch has no variable format

The above is how Switch is used in Go. Have you learned any knowledge or skills? If you want to learn more skills or enrich your knowledge reserves, please pay attention to the industry information channel.

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