func main() {
 pwd,_ := os.Getwd()
 //获取文件或目录相关信息
 fileInfoList,err := ioutil.ReadDir(pwd)
 if err != nil {
 log.Fatal(err)
 }
 fmt.Println(len(fileInfoList))
 for i := range fileInfoList {
 fmt.Println(fileInfoList[i].Name()) //打印当前文件或目录下的文件或目录名
 }
}

package main 
import (
 "os"
 "io/ioutil"
 "log"
 "fmt"
 "path/filepath"
)
 
func main() {
 pwd,_ := os.Getwd()
 
 //获取当前目录下的文件或目录名(包含路径)
 filepathNames,err := filepath.Glob(filepath.Join(pwd,"*"))
 if err != nil {
 log.Fatal(err)
 }
 
 for i := range filepathNames {
 fmt.Println(filepathNames[i]) //打印path
 } 
}

package main 
import (
 "os"
 "io/ioutil"
 "log"
 "fmt"
 "path/filepath"
)
 
func main() {
 pwd,_ := os.Getwd() 
 
 //获取当前目录下的所有文件或目录信息
 filepath.Walk(pwd,func(path string, info os.FileInfo, err error) error{
 fmt.Println(path) //打印path信息
 fmt.Println(info.Name()) //打印文件或目录名
 return nil
 })
}

package main
import (
  "io/ioutil"
  "fmt"
  "os"
)
func listAll(path string, curHier int) {
  readerInfos ,err := ioutil.ReadDir(path)
  if err != nil {
    fmt.Println(err)
    return
  }
  for _, info := range readerInfos {
    if info.IsDir() {
      for tmpheir := curHier; tmpheir >0; tmpheir-- {
        fmt.Printf("|\t")
      }
      fmt.Println(info.Name(),"\\")
      listAll(path + "\\" + info.Name(),curHier+1)
    }else {
      for tmpheir := curHier ;tmpheir >0; tmpheir-- {
        fmt.Printf("|\t")
      }
      fmt.Println(info.Name())
    }
  }
}
func main() {
  dir := os.Args[1]
  listAll(dir,0)
}