go mod 使用旧版本 版本号指定方式

k8s.io/cli-runtime => github.com/kubernetes/cli-runtime kubernetes-1.14.2

github.com/kubernetes/cloud-provider v0.0.0-20190516232619-2bf8e45c8454

k8s.io/apiserver => github.com/kubernetes/apiserver v0.0.0-20190516230822-f89599b3f645
k8s.io/cloud-provider => github.com/kubernetes/cloud-provider v0.0.0-20190516232619-2bf8e45c8454
sigs.k8s.io/yaml => github.com/kubernetes-sigs/yaml v1.1.0

package main
import (
	"fmt"
	"strings"
)
var (
	VersionBig = 1
	VersionSmall = 2
	VersionEqual = 0
)
func compareStrVer(verA, verB string) int {
	verStrArrA := spliteStrByNet(verA)
	verStrArrB := spliteStrByNet(verB)
	lenStrA := len(verStrArrA)
	lenStrB := len(verStrArrB)
	if lenStrA != lenStrB {
		panic("")
	}
	return compareArrStrVers(verStrArrA, verStrArrB)
}
func compareArrStrVers(verA, verB []string) int {
	for index, _ := range verA {
		littleResult := compareLittleVer(verA[index], verB[index])
		if littleResult != VersionEqual {
			return littleResult
		}
	}
	return VersionEqual
}
func compareLittleVer(verA, verB string) int {
	bytesA := []byte(verA)
	bytesB := []byte(verB)
	lenA := len(bytesA)
	lenB := len(bytesB)
	if lenA > lenB {
		return VersionBig
	}
	if lenA < lenB {
		return VersionSmall
	}
	return compareByBytes(bytesA, bytesB)
}
func compareByBytes(verA, verB []byte) int {
	for index, _ := range verA {
		if verA[index] > verB[index] {
			return VersionBig
		}
		if verA[index] < verB[index] {
			return VersionSmall
		}
	}
	return VersionEqual
}
func spliteStrByNet(strV string) []string {
	return strings.Split(strV, ".")
}
func main() {
	versionA := "1.2.3.54"
	versionB := "1.2.3.54"
	fmt.Println(compareStrVer(versionA, versionB))
}