golang 获取当前路径和上一级父路径（目录）
package main
import (
"fmt"
"log"
"os"
"path/filepath"
"strings"
)
func substr(s string, pos, length int) string {
runes := []rune(s)
l := pos + length
if l > len(runes) {
l = len(runes)
}
return string(runes[pos:l])
}
func getParentDirectory(dirctory string) string {
return substr(dirctory, 0, strings.LastIndex(dirctory, "/"))
}
func getCurrentDirectory() string {
dir, err := filepath.Abs(filepath.Dir(os.Args[0]))
if err != nil {
log.Fatal(err)
}
return strings.Replace(dir, "\\", "/", -1)
}
func main() {
var str1, str2 string
str1 = getCurrentDirectory()
str2 = getParentDirectory(str1)
fmt.Println(str2)
}
