go获取当前文件路径

func getCurrentPath() string {
    s, err := exec.LookPath(os.Args[0])
    checkErr(err)
    i := strings.LastIndex(s, "\\")
    path := string(s[0 : i+1])
    return path
}

func checkErr(err error) {
    if err != nil {
        panic(err)
    }
}

apath, _:=os.Getwd()
fmt.Println(apath)
fp := http.FileServer(http.Dir(apath+"/pdfjs/"))