diff --git a/conf/wide.go b/conf/wide.go
index 42eb8ef..dfe670d 100644
--- a/conf/wide.go
+++ b/conf/wide.go
@@ -17,6 +17,9 @@ import (
 	"github.com/golang/glog"
 )
 
+// 系统文件路径分隔符.
+const PathSeparator = string(os.PathSeparator)
+
 // 最后一次会话内容结构.
 type LatestSessionContent struct {
 	FileTree    []string // 文件树展开的路径集
@@ -150,25 +153,25 @@ func getGOBIN() string {
 	// $GOBIN/
 	ret := os.Getenv("GOBIN")
 	if "" != ret {
-		return ret + string(os.PathSeparator)
+		return ret + PathSeparator
 	}
 
 	// $GOPATH/bin/$GOOS_$GOARCH/
-	ret = os.Getenv("GOPATH") + string(os.PathSeparator) + "bin" + string(os.PathSeparator) +
+	ret = os.Getenv("GOPATH") + PathSeparator + "bin" + PathSeparator +
 		os.Getenv("GOOS") + "_" + os.Getenv("GOARCH")
 	if isExist(ret) {
-		return ret + string(os.PathSeparator)
+		return ret + PathSeparator
 	}
 
 	// $GOPATH/bin/{runtime.GOOS}_{runtime.GOARCH}/
-	ret = os.Getenv("GOPATH") + string(os.PathSeparator) + "bin" + string(os.PathSeparator) +
+	ret = os.Getenv("GOPATH") + PathSeparator + "bin" + PathSeparator +
 		runtime.GOOS + "_" + runtime.GOARCH
 	if isExist(ret) {
-		return ret + string(os.PathSeparator)
+		return ret + PathSeparator
 	}
 
 	// $GOPATH/bin/
-	return os.Getenv("GOPATH") + string(os.PathSeparator) + "bin" + string(os.PathSeparator)
+	return os.Getenv("GOPATH") + PathSeparator + "bin" + PathSeparator
 }
 
 // 保存 Wide 配置.
@@ -227,7 +230,7 @@ func Load() {
 	// 获取当前执行路径
 	file, _ := exec.LookPath(os.Args[0])
 	pwd, _ := filepath.Abs(file)
-	pwd = pwd[:strings.LastIndex(pwd, string(os.PathSeparator))]
+	pwd = pwd[:strings.LastIndex(pwd, PathSeparator)]
 	Wide.Pwd = pwd
 	glog.V(3).Infof("pwd [%s]", pwd)
 
diff --git a/conf/wide.json b/conf/wide.json
index 66248d9..92138e2 100644
--- a/conf/wide.json
+++ b/conf/wide.json
@@ -16,9 +16,14 @@
             "Password": "admin",
             "Workspace": "{pwd}/data/user_workspaces/admin",
             "LatestSessionContent": {
-                "FileTree": [],
-                "Files": [],
-                "CurrentFile": ""
+                "FileTree": [
+                    "/home/daniel/gogogo/src/github.com/b3log/wide/data/user_workspaces/admin/src/mytest",
+                    "/home/daniel/gogogo/src/github.com/b3log/wide/data/user_workspaces/admin/src/mytest/time"
+                ],
+                "Files": [
+                    "/home/daniel/gogogo/src/github.com/b3log/wide/data/user_workspaces/admin/src/mytest/time/main.go"
+                ],
+                "CurrentFile": "/home/daniel/gogogo/src/github.com/b3log/wide/data/user_workspaces/admin/src/mytest/time/main.go"
             }
         }
     ]
diff --git a/editor/editors.go b/editor/editors.go
index 221ade6..077a93b 100644
--- a/editor/editors.go
+++ b/editor/editors.go
@@ -126,7 +126,7 @@ func AutocompleteHandler(w http.ResponseWriter, r *http.Request) {
 	userWorkspace := conf.Wide.GetUserWorkspace(username)
 
 	//glog.Infof("User [%s] workspace [%s]", username, userWorkspace)
-	userLib := userWorkspace + string(os.PathSeparator) + "pkg" + string(os.PathSeparator) +
+	userLib := userWorkspace + conf.PathSeparator + "pkg" + conf.PathSeparator +
 		runtime.GOOS + "_" + runtime.GOARCH
 
 	libPath := userLib
@@ -175,8 +175,8 @@ func GetExprInfoHandler(w http.ResponseWriter, r *http.Request) {
 	}
 
 	path := args["path"].(string)
-	curDir := path[:strings.LastIndex(path, string(os.PathSeparator))]
-	filename := path[strings.LastIndex(path, string(os.PathSeparator))+1:]
+	curDir := path[:strings.LastIndex(path, conf.PathSeparator)]
+	filename := path[strings.LastIndex(path, conf.PathSeparator)+1:]
 
 	fout, err := os.Create(path)
 
@@ -249,8 +249,8 @@ func FindDeclarationHandler(w http.ResponseWriter, r *http.Request) {
 	}
 
 	path := args["path"].(string)
-	curDir := path[:strings.LastIndex(path, string(os.PathSeparator))]
-	filename := path[strings.LastIndex(path, string(os.PathSeparator))+1:]
+	curDir := path[:strings.LastIndex(path, conf.PathSeparator)]
+	filename := path[strings.LastIndex(path, conf.PathSeparator)+1:]
 
 	fout, err := os.Create(path)
 
@@ -332,8 +332,8 @@ func FindUsagesHandler(w http.ResponseWriter, r *http.Request) {
 	}
 
 	filePath := args["path"].(string)
-	curDir := filePath[:strings.LastIndex(filePath, string(os.PathSeparator))]
-	filename := filePath[strings.LastIndex(filePath, string(os.PathSeparator))+1:]
+	curDir := filePath[:strings.LastIndex(filePath, conf.PathSeparator)]
+	filename := filePath[strings.LastIndex(filePath, conf.PathSeparator)+1:]
 
 	fout, err := os.Create(filePath)
 
diff --git a/file/files.go b/file/files.go
index 5d066d1..7e3edbf 100644
--- a/file/files.go
+++ b/file/files.go
@@ -45,12 +45,12 @@ func GetFiles(w http.ResponseWriter, r *http.Request) {
 	session, _ := session.HTTPSession.Get(r, "wide-session")
 
 	username := session.Values["username"].(string)
-	userSrc := conf.Wide.GetUserWorkspace(username) + string(os.PathSeparator) + "src"
+	userSrc := conf.Wide.GetUserWorkspace(username) + conf.PathSeparator + "src"
 
 	root := FileNode{Name: "projects", Path: userSrc, IconSkin: "ico-ztree-dir ", Type: "d", FileNodes: []*FileNode{}}
 
 	// 构造 Go API 节点
-	apiPath := runtime.GOROOT() + string(os.PathSeparator) + "src" + string(os.PathSeparator) + "pkg"
+	apiPath := runtime.GOROOT() + conf.PathSeparator + "src" + conf.PathSeparator + "pkg"
 	apiNode := FileNode{Name: "Go API", Path: apiPath, FileNodes: []*FileNode{}}
 
 	goapiBuildOKSignal := make(chan bool)
@@ -423,8 +423,8 @@ func removeFile(path string) bool {
 
 // 在 dir 指定的目录（包含子目录）中的 extension 指定后缀的文件中搜索包含 text 文本的文件，类似 grep/findstr 命令.
 func search(dir, extension, text string, snippets []*Snippet) []*Snippet {
-	if !strings.HasSuffix(dir, string(os.PathSeparator)) {
-		dir += string(os.PathSeparator)
+	if !strings.HasSuffix(dir, conf.PathSeparator) {
+		dir += conf.PathSeparator
 	}
 
 	f, _ := os.Open(dir)
diff --git a/output/outputs.go b/output/outputs.go
index a4f910e..ed30f81 100644
--- a/output/outputs.go
+++ b/output/outputs.go
@@ -73,7 +73,7 @@ func RunHandler(w http.ResponseWriter, r *http.Request) {
 	}
 
 	filePath := args["executable"].(string)
-	curDir := filePath[:strings.LastIndex(filePath, string(os.PathSeparator))]
+	curDir := filePath[:strings.LastIndex(filePath, conf.PathSeparator)]
 
 	cmd := exec.Command(filePath)
 	cmd.Dir = curDir
@@ -183,7 +183,7 @@ func BuildHandler(w http.ResponseWriter, r *http.Request) {
 	sid := args["sid"].(string)
 
 	filePath := args["file"].(string)
-	curDir := filePath[:strings.LastIndex(filePath, string(os.PathSeparator))]
+	curDir := filePath[:strings.LastIndex(filePath, conf.PathSeparator)]
 
 	fout, err := os.Create(filePath)
 
@@ -219,7 +219,7 @@ func BuildHandler(w http.ResponseWriter, r *http.Request) {
 
 	glog.V(5).Infof("go build -o %s %s", executable, filePath)
 
-	executable = curDir + string(os.PathSeparator) + executable
+	executable = curDir + conf.PathSeparator + executable
 
 	// 先把可执行文件删了
 	err = os.RemoveAll(executable)
@@ -370,7 +370,7 @@ func GoInstallHandler(w http.ResponseWriter, r *http.Request) {
 	sid := args["sid"].(string)
 
 	filePath := args["file"].(string)
-	curDir := filePath[:strings.LastIndex(filePath, string(os.PathSeparator))]
+	curDir := filePath[:strings.LastIndex(filePath, conf.PathSeparator)]
 
 	fout, err := os.Create(filePath)
 
@@ -519,7 +519,7 @@ func GoGetHandler(w http.ResponseWriter, r *http.Request) {
 	sid := args["sid"].(string)
 
 	filePath := args["file"].(string)
-	curDir := filePath[:strings.LastIndex(filePath, string(os.PathSeparator))]
+	curDir := filePath[:strings.LastIndex(filePath, conf.PathSeparator)]
 
 	cmd := exec.Command("go", "get")
 	cmd.Dir = curDir
diff --git a/session/users.go b/session/users.go
index d3c5ee7..2d829f8 100644
--- a/session/users.go
+++ b/session/users.go
@@ -5,7 +5,6 @@ package session
 import (
 	"encoding/json"
 	"net/http"
-	"os"
 
 	"github.com/b3log/wide/conf"
 	"github.com/b3log/wide/util"
@@ -52,7 +51,7 @@ func InitGitRepos(w http.ResponseWriter, r *http.Request) {
 	session, _ := HTTPSession.Get(r, "wide-session")
 
 	username := session.Values["username"].(string)
-	userRepos := conf.Wide.GetUserWorkspace(username) + string(os.PathSeparator) + "src"
+	userRepos := conf.Wide.GetUserWorkspace(username) + conf.PathSeparator + "src"
 
 	glog.Info(userRepos)