go - 如何在golang中比较两个版本号字符串

Question

我有两个字符串(它们实际上是版本号，可以是任何版本号)

a := "1.05.00.0156"  
b := "1.0.221.9289"

我想比较哪个更大。在golang中怎么做？

Answer 1

Hashicorp 提供了一个不错的解决方案 - https://github.com/hashicorp/go-version

import github.com/hashicorp/go-version
v1, err := version.NewVersion("1.2")
v2, err := version.NewVersion("1.5+metadata")
// Comparison example. There is also GreaterThan, Equal, and just
// a simple Compare that returns an int allowing easy >=, <=, etc.
if v1.LessThan(v2) {
    fmt.Printf("%s is less than %s", v1, v2)
}