Go Mod

• 创建项目结构如下

TestGoMod
├── testGM.go
└── greetings
  └── greet.go

greet.go

package greetings
import "fmt"
func Hello()  {
    fmt.Println("hello")
}

testGM.go

package main

import (
    "fmt"
    "greetings"
)
func main() {
    greetings.Hello()
    fmt.Println("testGM")
}

• go mod 初始化

D:\Go\project\TestGoMod\greetings>go mod init greetins
D:\Go\project\TestGoMod>go mod init TestGoMod
D:\Go\project\TestGoMod>go mod edit -replace greetings=./greetings
D:\Go\project\TestGoMod>go mod tidy

TestGoMod
├── testGM.go
├── go.mod
└── greetings
  ├── greet.go
  ├── go.mod

• build & run testGM.go

D:\Go\project\TestGoMod>go build testGM.go
D:\Go\project\TestGoMod>go run testGM.go