diff --git a/README.md b/README.md
index daea332..c4a89cb 100644
--- a/README.md
+++ b/README.md
@@ -24,38 +24,47 @@ function main(args){
 ## module.exports
 
 ```ts
-function json(data:any): string {return ''}
-function jsonP(data:any): string {return ''}
-function unJson(data:string): any {return null}
-function yaml(data:any): string {return ''}
-function unYaml(data:string): any {return null}
-function load(filename:string): any {return null}
-function save(filename:string, data:any) {}
-function base64(data:any): string {return ''}
-function unBase64(data:string): any {return null}
-function urlBase64(data:any): string {return ''}
-function unUrlBase64(data:string): any {return null}
-function hex(data:any): string {return ''}
-function unHex(data:string): any {return null}
-function aes(data:any, key:string, iv:string): string {return ''}
-function unAes(data:string, key:string, iv:string): any {return null}
-function gzip(data:any): string {return ''}
-function gunzip(data:string): any {return null}
-function id(): string {return ''}
-function uniqueId(): string {return ''}
-function token(size:number): string {return ''}
-function md5(data:any): string {return ''}
-function sha1(data:any): string {return ''}
-function sha256(data:any): string {return ''}
-function sha512(data:any): string {return ''}
-function tpl(text:string, data:any, functions?:Object): string {return ''}
-function sleep(ms:number): void {}
-function setTimeout(callback:()=>void, ms?:number, ...args:any): void {}
-function shell(cmd:string, ...args:string[]): string[] {return []}
-function toDatetime(timestamp:number): string {return ''}
-function fromDatetime(datetimeStr:string): number {return 0}
-function toDate(timestamp:number): string {return ''}
-function fromDate(dateStr:string): number {return 0}
+function json(data:any)
+function jsonP(data:any)
+function unJson(data:string)
+function yaml(data:any)
+function unYaml(data:string)
+function load(filename:string)
+function save(filename:string, data:any)
+function base64(data:any)
+function unBase64(data:string)
+function urlBase64(data:any)
+function unUrlBase64(data:string)
+function hex(data:any)
+function unHex(data:string)
+function aes(data:any, key:string, iv:string)
+function unAes(data:string, key:string, iv:string)
+function gzip(data:any)
+function gunzip(data:string)
+function id()
+function uniqueId()
+function token(size:number)
+function md5(data:any)
+function sha1(data:any)
+function sha256(data:any)
+function sha512(data:any)
+function tpl(text:string, data:any, functions?:Object)
+function sleep(ms:number)
+function setTimeout(callback:()=>void, ms?:number, ...args:any)
+function shell(cmd:string, ...args:string[])
+function toDatetime(timestamp:number)
+function fromDatetime(datetimeStr:string)
+function toDate(timestamp:number)
+function fromDate(dateStr:string)
+function os()
+function arch()
+function joinPath(...paths:string[])
+function getPathDir(path:string)
+function getPathBase(path:string)
+function getPathVolume(path:string)
+function absPath(path:string)
+function cleanPath(path:string)
+function isLocalPath(path:string)
 ```
 
 ## full api see [util.ts](https://apigo.cc/gojs/util/util.ts)
diff --git a/util.go b/util.go
index c6e96fe..f3b04b1 100644
--- a/util.go
+++ b/util.go
@@ -5,6 +5,8 @@ import (
 	_ "embed"
 	"encoding/hex"
 	"encoding/json"
+	"path/filepath"
+	"runtime"
 	"strings"
 	"text/template"
 	"time"
@@ -298,6 +300,44 @@ func init() {
 				panic(vm.NewGoError(err))
 			}
 		},
+		"os": func(argsIn goja.FunctionCall, vm *goja.Runtime) goja.Value {
+			return vm.ToValue(runtime.GOOS)
+		},
+		"arch": func(argsIn goja.FunctionCall, vm *goja.Runtime) goja.Value {
+			return vm.ToValue(runtime.GOARCH)
+		},
+		"joinPath": func(argsIn goja.FunctionCall, vm *goja.Runtime) goja.Value {
+			args := gojs.MakeArgs(&argsIn, vm).Check(1)
+			return vm.ToValue(filepath.Join(args.StrArray(0)...))
+		},
+		"getPathDir": func(argsIn goja.FunctionCall, vm *goja.Runtime) goja.Value {
+			args := gojs.MakeArgs(&argsIn, vm).Check(1)
+			return vm.ToValue(filepath.Dir(args.Str(0)))
+		},
+		"getPathBase": func(argsIn goja.FunctionCall, vm *goja.Runtime) goja.Value {
+			args := gojs.MakeArgs(&argsIn, vm).Check(1)
+			return vm.ToValue(filepath.Base(args.Str(0)))
+		},
+		"getPathVolume": func(argsIn goja.FunctionCall, vm *goja.Runtime) goja.Value {
+			args := gojs.MakeArgs(&argsIn, vm).Check(1)
+			return vm.ToValue(filepath.VolumeName(args.Str(0)))
+		},
+		"absPath": func(argsIn goja.FunctionCall, vm *goja.Runtime) goja.Value {
+			args := gojs.MakeArgs(&argsIn, vm).Check(1)
+			r, err := filepath.Abs(args.Str(0))
+			if err != nil {
+				panic(vm.NewGoError(err))
+			}
+			return vm.ToValue(r)
+		},
+		"cleanPath": func(argsIn goja.FunctionCall, vm *goja.Runtime) goja.Value {
+			args := gojs.MakeArgs(&argsIn, vm).Check(1)
+			return vm.ToValue(filepath.Clean(args.Str(0)))
+		},
+		"isLocalPath": func(argsIn goja.FunctionCall, vm *goja.Runtime) goja.Value {
+			args := gojs.MakeArgs(&argsIn, vm).Check(1)
+			return vm.ToValue(filepath.IsLocal(args.Str(0)))
+		},
 	}
 
 	gojs.Register("apigo.cc/gojs/util", gojs.Module{
diff --git a/util.ts b/util.ts
index 4febb3d..5a0f2f7 100644
--- a/util.ts
+++ b/util.ts
@@ -31,7 +31,16 @@ export default {
     toDatetime,
     fromDatetime,
     toDate,
-    fromDate
+    fromDate,
+    os,
+    arch,
+    joinPath,
+    getPathDir,
+    getPathBase,
+    getPathVolume,
+    absPath,
+    cleanPath,
+    isLocalPath
 }
 
 function json(data:any): string {return ''}
@@ -66,3 +75,12 @@ function toDatetime(timestamp:number): string {return ''}
 function fromDatetime(datetimeStr:string): number {return 0}
 function toDate(timestamp:number): string {return ''}
 function fromDate(dateStr:string): number {return 0}
+function os(): string {return ''}
+function arch(): string {return ''}
+function joinPath(...paths:string[]): string {return ''}
+function getPathDir(path:string): string {return ''}
+function getPathBase(path:string): string {return ''}
+function getPathVolume(path:string): string {return ''}
+function absPath(path:string): string {return ''}
+function cleanPath(path:string): string {return ''}
+function isLocalPath(path:string): boolean {return false}