是的，可以在同一臺(tái)機(jī)器上安裝多個(gè)Go版本。使用版本管理工具如gvm或goenv可輕鬆實(shí)現(xiàn)，其中g(shù)vm支持包集合，適合跨環(huán)境測(cè)試，而goenv類似rbenv，操作簡(jiǎn)單；安裝後通過(guò)命令如gvm install go1.20和gvm use go1.20進(jìn)行版本切換，並設(shè)置默認(rèn)版本。若不使用工具，也可手動(dòng)安裝不同版本到獨(dú)立目錄並通過(guò)修改PATH環(huán)境變量切換，例如配置shell別名go120和go121快速切換。無(wú)論採(cǎi)用哪種方式，都應(yīng)通過(guò)go version確認(rèn)當(dāng)前使用的版本，並在IDE中檢查Go二進(jìn)製文件路徑以避免衝突。

Yes, it's absolutely possible to have multiple versions of Go installed on the same machine. In fact, this is pretty common, especially when working on different projects that rely on specific Go versions.

The key is managing them properly so you don't run into conflicts or confusion.

Use a Version Manager Like gvm or goenv

Managing multiple Go versions manually can get messy. That's where tools like gvm (Go Version Manager) or goenv come in handy — they let you install and switch between versions easily.

• gvm is more feature-rich and supports package sets, which can be useful if you're testing builds across environments.
• goenv works similarly to rbenv for Ruby, making version switching straightforward.

Installation steps vary slightly depending on your OS, but most involve running a script or installing via Homebrew (on macOS).

Once installed, commands like:

 gvm install go1.20
gvm use go1.20

...will handle the switching.

Make sure to set a default version for new shells so you're not always specifying it manually.

Install Versions Manually Without a Manager

If you'd rather keep things minimal, you can also install multiple Go versions directly from the official source:

1. Download and extract each version into separate directories like /usr/local/go1.20 , /usr/local/go1.21 , etc.
2. Update your PATH environment variable based on which version you want to use.

You can create shell aliases or scripts to swap between them quickly. For example, a simple alias in your .bashrc or .zshrc :

 alias go120='export PATH=/usr/local/go1.20/bin:$PATH'
alias go121='export PATH=/usr/local/go1.21/bin:$PATH'

Then just run go120 or go121 before working on a project.

This method gives you full control but requires a bit more maintenance.

Check Your Current Go Version Easily

No matter how you manage versions, always verify which one you're using with:

 go version

It's easy to forget which version you've got active, especially after rebooting or opening a new terminal window. Adding the current Go version to your shell prompt (like how pyenv shows Python versions) can help avoid surprises.

Also, some IDEs or editors might use their own Go setup, so double-check settings in VS Code, GoLand, or whatever tool you're using to make sure they point to the right binary.

That's basically all there is to it. Multiple Go versions coexist just fine — it's just about having the right tools and habits in place.

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