Go默認將程序編譯為獨立二進製文件，主要原因是靜態(tài)鏈接。 1. 部署更簡單：無需額外安裝依賴庫，可直接跨Linux發(fā)行版運行；2. 二進制體積更大：包含所有依賴導致文件尺寸增加，但可通過構建標誌或壓縮工具優(yōu)化；3. 更高的可預測性與安全性：避免外部庫版本變化帶來的風險，增強穩(wěn)定性；4. 運行靈活性受限：無法熱更新共享庫，需重新編譯部署以修復依賴漏洞。這些特性使Go適用於CLI工具、微服務等場景，但在存儲受限或依賴集中管理的環(huán)境中需權衡取捨。

Go compiles programs into standalone binaries by default, and one of the key reasons is static linking. This has several practical implications for developers, deployment, and system behavior.

Easier Deployment

One of the most obvious benefits is that you don't need to worry about shared libraries or dependencies when deploying a Go binary. Since everything is bundled together, you can copy the binary to a machine and run it without installing additional runtime components.

• No dependency hell
• No need to manage .so or .dll files
• Works across different Linux distributions as long as the kernel supports it

This makes Go especially popular for building CLI tools, microservices, and cloud-native applications where simplicity in deployment matters.

Larger Binary Size

Because all dependencies are included, the resulting binary tends to be bigger than dynamically linked executables. For small programs, this might not matter much, but for large projects or systems with tight storage constraints, it's something to consider.

• A simple "Hello World" might be several MBs
• Adding features like TLS or compression increases size
• Can be reduced with build flags ( -s -w ) or post-processing ( upx )

It's a trade-off: you gain simplicity in deployment at the cost of disk space and sometimes download time.

Better Predictability and Security

Since the binary includes exactly what it needs — and nothing more — there's less risk of unexpected behavior due to external library versions. You know exactly which code is running.

• Less vulnerable to runtime library changes
• Harder to exploit via shared library hijacking
• Reproducible builds (especially with modules)

This predictability is great for security-sensitive environments or long-running services where stability is crucial.

Limited Runtime Flexibility

On the flip side, static linking means you can't hot-swap libraries or update dependencies system-wide. If a critical bug is found in a system library, you have to rebuild and redeploy the entire binary.

• Patching requires recompilation
• Not ideal for environments where shared libraries are centrally managed
• Makes some types of dynamic loading harder

This is usually acceptable for most Go use cases, but it's something to be aware of if you're used to dynamic linking models from C/C or other languages.

基本上就這些。

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