What is the difference between golang1 and golang2

Golang is an open source programming language that is often used in network programming and distributed systems. With the release of Golang1, Golang2 also came out soon after. So, what's the difference between these two versions? This article will explore the differences between Golang1 and Golang2.

1. Language Features

The biggest difference between Golang1 and Golang2 lies in the change of language features. Golang2 adds some new language features, such as the introduction of modular programming, support for generic programming, etc. These changes make Golang2 more flexible and efficient.

2. Modular Programming

In Golang1, all code files of an application can only be placed in one folder. If you need to use other libraries, you need to import them Package implementation. But Golang2 introduced modular programming, which means we can scatter the code in different files and folders and manage and install them through commands. This greatly facilitates developers to perform modular programming.

3. Generic programming

Golang1 has been widely used in network server development for a long time, but one of its flaws is that it does not support generic programming. This results in code duplication and verbosity. Golang2 has changed this and introduced generic programming, which makes the code more concise and readable, and can also improve the efficiency of the code.

4. Performance Optimization

Golang1 is already excellent in terms of performance, but Golang2 has made more optimizations in terms of performance. For example, Golang2 introduced a new heap allocator, making memory allocation more efficient. At the same time, Golang2 also optimizes CGO performance, so interacting with C and C code is more efficient, which also makes Golang2 a more powerful programming language.

5. Launch Time

Golang1 was released in 2009, while Golang2 was released in 2021. Since Golang1 has been widely used for a long time and most people have adapted to its programming style, it will take some time for people to accept and adapt to this new version after Golang2 comes out.

6. Compatibility

Golang2 is compatible with Golang1, which means that projects originally written in Golang1 can be directly migrated to Golang2, or Golang1 and Golang2 projects can run at the same time . This brings greater flexibility and choice to developers.

Summary

Compared with Golang1, Golang2 has greatly improved in terms of language features and performance. Modular programming and generic programming are introduced to make the organization and management of code more efficient and flexible. Although Golang2 has not been launched for a long time, it has gradually begun to be accepted by more and more developers with its new features. The most important thing is that Golang2 is compatible with Golang1, which makes the migration cost relatively low and provides developers with more choices.

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