diff --git a/cef/homedir.go b/cef/homedir.go
index a6c57f991ef4ea58ffa33af59a35e29c477b7620..f239cf9df61c79b95e3cd1b6566c831d6e8a3228 100644
--- a/cef/homedir.go
+++ b/cef/homedir.go
@@ -11,10 +11,10 @@ package cef
 import (
 	"bytes"
 	"errors"
+	"github.com/energye/energy/common"
 	"os"
 	"os/exec"
 	"path/filepath"
-	"runtime"
 	"strconv"
 	"strings"
 	"sync"
@@ -46,7 +46,7 @@ func Dir() (string, error) {
 
 	var result string
 	var err error
-	if runtime.GOOS == "windows" {
+	if common.IsWindows() {
 		result, err = dirWindows()
 	} else {
 		// Unix-like system, so just assume Unix
@@ -96,7 +96,7 @@ func Reset() {
 
 func dirUnix() (string, error) {
 	homeEnv := "HOME"
-	if runtime.GOOS == "plan9" {
+	if common.IsPlan9() {
 		// On plan9, env vars are lowercase.
 		homeEnv = "home"
 	}
@@ -109,7 +109,7 @@ func dirUnix() (string, error) {
 	var stdout bytes.Buffer
 
 	// If that fails, try OS specific commands
-	if runtime.GOOS == "darwin" {
+	if common.IsDarwin() {
 		cmd := exec.Command("sh", "-c", `dscl -q . -read /Users/"$(whoami)" NFSHomeDirectory | sed 's/^[^ ]*: //'`)
 		cmd.Stdout = &stdout
 		if err := cmd.Run(); err == nil {
diff --git a/common/assetserve/server_test.go b/common/assetserve/server_test.go
index 5728413a4f32562cdb74fd4874387f99c1d138f3..a531e1480d3da3f1025c038eb8e5d70f76cc7569 100644
--- a/common/assetserve/server_test.go
+++ b/common/assetserve/server_test.go
@@ -2,7 +2,6 @@ package assetserve
 
 import (
 	"embed"
-	"fmt"
 	"testing"
 )
 
@@ -13,6 +12,5 @@ func TestServer(t *testing.T) {
 	server := NewAssetsHttpServer()
 	server.AssetsFSName = "assets" //必须设置目录名
 	server.Assets = &assets
-	err := server.StartHttpServer()
-	fmt.Println(err)
+	server.StartHttpServer() //go server.StartHttpServer()
 }
diff --git a/common/common.go b/common/common.go
index f02fb88bb82f0c3bbd70135c0c8e1955bdfa6cde..9393cca1c42cd1142550e8ad87c5f79ee22543f7 100644
--- a/common/common.go
+++ b/common/common.go
@@ -27,13 +27,26 @@ import (
 )
 
 const (
-	IntSize   = strconv.IntSize
-	IntSize32 = 32
-	intSize64 = 64
-
-	isWindows = runtime.GOOS == "windows"
-	isLinux   = runtime.GOOS == "linux"
-	isDarwin  = runtime.GOOS == "darwin"
+	IntSize     = strconv.IntSize             //bit
+	IntSize32   = 32                          //
+	intSize64   = 64                          //
+	isWindows   = runtime.GOOS == "windows"   //support
+	isLinux     = runtime.GOOS == "linux"     //support
+	isDarwin    = runtime.GOOS == "darwin"    //support
+	isAndroid   = runtime.GOOS == "android"   //not support
+	isIos       = runtime.GOOS == "ios"       //not support
+	isPlan9     = runtime.GOOS == "plan9"     //not support
+	isAix       = runtime.GOOS == "aix"       //not support
+	isDragonfly = runtime.GOOS == "dragonfly" //not support
+	isFreebsd   = runtime.GOOS == "freebsd"   //not support
+	isHurd      = runtime.GOOS == "hurd"      //not support
+	isIllumos   = runtime.GOOS == "illumos"   //not support
+	isJs        = runtime.GOOS == "js"        //not support
+	isNacl      = runtime.GOOS == "nacl"      //not support
+	isNetbsd    = runtime.GOOS == "netbsd"    //not support
+	isOpenbsd   = runtime.GOOS == "openbsd"   //not support
+	isSolaris   = runtime.GOOS == "solaris"   //not support
+	isZos       = runtime.GOOS == "zos"       //not support
 )
 
 func Proc(index int) dllimports.ProcAddr {
@@ -52,6 +65,10 @@ func IsDarwin() bool {
 	return isDarwin
 }
 
+func IsPlan9() bool {
+	return isPlan9
+}
+
 func StrToInt64(value string) int64 {
 	v, _ := strconv.ParseInt(value, 10, 64)
 	return v