关于 go import 自定义包的问题

This topic created in 3185 days ago, the information mentioned may be changed or developed.

工程目录

Myproject
---.idea
---scr
   ---cmd
      ---cmd.go
   ---test
      ---test.go

###POPATH 与 GOROOT

GOPATH="/Users/road/IdeaProjects/Myproject"
GOROOT="/usr/local/go"

cmd.go

package cmd

import (
	"flag"
	"fmt"
	"os"
)

/*
	jaca [-option] class [args...]
*/
type Cmd struct {
	HelpFlag bool
	VersionFlag bool
	CpOption string
	Class string
	Args []string
}

func ParseCmd() *Cmd  {
	cmd := &Cmd{}
	flag.Usage = PrintUsage
	flag.BoolVar(&cmd.HelpFlag,"help",false,"print help message")
	flag.BoolVar(&cmd.HelpFlag,"?",false,"print help message")
	flag.BoolVar(&cmd.VersionFlag,"version",false,"print version and exit")
	flag.StringVar(&cmd.CpOption,"cp","","classpth")
	flag.StringVar(&cmd.CpOption,"classpath","","classpath")
	flag.Parse();
}

func PrintUsage()  {
	fmt.Println("Ussge: %s [-option] class [args...]\n",os.Args[0])
}

test.go 无法调用 cmd.go 中相关函数,如下 command：=&Cmd{}失败

package main

import (
	"cmd"
)
func main()  {
	command := &Cmd{} //提示 unresolved type 'Cmd'
}

Cmd

Flag

args

5 replies • 2017-09-04 19:08:45 +08:00

ghonfir

Sep 4, 2017

command := &cmd.Cmd{}

nickname

Sep 4, 2017

@sryanyuan 这样写还是不行，感觉是 import"cmd"并没有将自定义的 cmd 包导入到 test.go 中

ghonfir

Sep 4, 2017

Myproject (GOPATH)下的 scr 是打错了？理论上应该是 src
命令行里直接
```
export GOPATH=/Users/road/IdeaProjects/Myproject
go install test

```

nickname

Sep 4, 2017

@sryanyuan 是我敲错了，工程里是 src 没问题的
```
can't load package: package test: cannot find package "test" in any of:
/usr/local/go/src/test (from $GOROOT)
/Users/road/IdeaProjects/Myproject/src/test (from $GOPATH)```

nickname

Sep 4, 2017

在 StackOverflow 问了一下，标准库已经有一个同名的 cmd 包，跟我自定义的 cmd 包命名有冲突，我尝试改了名字，现在正常了