diff --git a/RedPandaIDE/editor.cpp b/RedPandaIDE/editor.cpp
index caf80cf9..56bc2ea3 100644
--- a/RedPandaIDE/editor.cpp
+++ b/RedPandaIDE/editor.cpp
@@ -63,7 +63,7 @@ Editor::Editor(QWidget *parent, const QString& filename,
     lexer->setHighlightEscapeSequences(true);
     lexer->setFoldComments(true);
     this->setLexer(lexer);
-    this->setAutoIndent(pSettings->value(EDITOR_AUTO_INDENT).toBool());
+    this->setAutoIndent(pSettings->editor().autoIndent());
     this->setFolding(FoldStyle::BoxedTreeFoldStyle,3);
 
     //行号显示区域
@@ -154,7 +154,7 @@ void Editor::saveFile(const QString &filename) {
     }
     if (mEncodingOption == ENCODING_AUTO_DETECT && mFileEncoding == ENCODING_ASCII) {
         if (!isTextAllAscii(this->text())) {
-            mFileEncoding = pSettings->value(EDITOR_DEFAULT_ENCODING).toByteArray();
+            mFileEncoding = pSettings->editor().defaultEncoding();
         }
         pMainWindow->updateStatusBarForEncoding();
         //todo: update status bar, and set fileencoding using configurations
diff --git a/RedPandaIDE/settings.cpp b/RedPandaIDE/settings.cpp
index f5c2449d..f77a30bc 100644
--- a/RedPandaIDE/settings.cpp
+++ b/RedPandaIDE/settings.cpp
@@ -1,28 +1,114 @@
 #include "settings.h"
+#include <QApplication>
 #include <QTextCodec>
+#include "utils.h"
 
 Settings* pSettings;
 
 Settings::Settings():
-    mSettings(QSettings::IniFormat,QSettings::UserScope,"Red Panda C++")
+    mSettings(QSettings::IniFormat,QSettings::UserScope,"Red Panda C++"),
+    mDirs(this),
+    mEditor(this)
 {
 
     // default values for editors
-    setDefault(EDITOR_DEFAULT_ENCODING, QTextCodec::codecForLocale()->name());
-    setDefault(EDITOR_AUTO_INDENT,true);
+    mEditor.setDefault(SETTING_EDITOR_DEFAULT_ENCODING, QTextCodec::codecForLocale()->name());
+    mEditor.setDefault(SETTING_EDITOR_AUTO_INDENT,true);
+
 }
 
 
-void Settings::setDefault(const QString &key, const QVariant &value) {
+void Settings::setDefault(const QString&group,const QString &key, const QVariant &value) {
+    mSettings.beginGroup(group);
+    auto act = finally([this] {
+        this->mSettings.endGroup();
+    });
     if (!mSettings.contains(key)) {
         mSettings.setValue(key,value);
     }
 }
 
-void Settings::setValue(const QString &key, const QVariant &value) {
+void Settings::setValue(const QString& group, const QString &key, const QVariant &value) {
+    mSettings.beginGroup(group);
+    auto act = finally([this] {
+        this->mSettings.endGroup();
+    });
     mSettings.setValue(key,value);
 }
 
-QVariant Settings::value(const QString &key) const {
+QVariant Settings::value(const QString& group, const QString &key) {
+    mSettings.beginGroup(group);
+    auto act = finally([this] {
+        this->mSettings.endGroup();
+    });
     return mSettings.value(key);
 }
+
+Settings::Dirs &Settings::dirs()
+{
+    return mDirs;
+}
+
+Settings::Editor &Settings::editor()
+{
+    return mEditor;
+}
+
+Settings::Dirs::Dirs(Settings *settings):
+    _Base(settings, SETTING_DIRS)
+{
+}
+
+const QString Settings::Dirs::app() const
+{
+    QApplication::instance()->applicationDirPath();
+}
+
+Settings::_Base::_Base(Settings *settings, const QString &groupName):
+    mSettings(settings),
+    mGroup(groupName)
+{
+
+}
+
+void Settings::_Base::setDefault(const QString &key, const QVariant &value)
+{
+    mSettings->setDefault(mGroup,key,value);
+}
+
+void Settings::_Base::setValue(const QString &key, const QVariant &value)
+{
+    mSettings->setValue(mGroup,key,value);
+}
+
+QVariant Settings::_Base::value(const QString &key)
+{
+    return mSettings->value(mGroup,key);
+}
+
+Settings::Editor::Editor(Settings *settings): _Base(settings, SETTING_EDITOR)
+{
+
+}
+
+QByteArray Settings::Editor::defaultEncoding()
+{
+    return value(SETTING_EDITOR_DEFAULT_ENCODING).toByteArray();
+}
+
+void Settings::Editor::setDefaultEncoding(const QByteArray &encoding)
+{
+    setValue(SETTING_EDITOR_DEFAULT_ENCODING,encoding);
+}
+
+bool Settings::Editor::autoIndent()
+{
+    return value(SETTING_EDITOR_AUTO_INDENT).toBool();
+}
+
+void Settings::Editor::setAutoIndent(bool indent)
+{
+    setValue(SETTING_EDITOR_AUTO_INDENT,indent);
+}
+
+
diff --git a/RedPandaIDE/settings.h b/RedPandaIDE/settings.h
index f0fc62e4..ea7adfbb 100644
--- a/RedPandaIDE/settings.h
+++ b/RedPandaIDE/settings.h
@@ -3,25 +3,58 @@
 
 #include <QSettings>
 
-#define EDITOR_DEFAULT_ENCODING "editor/default_encoding"
-#define EDITOR_AUTO_INDENT "editor/default_auto_indent"
+#define SETTING_DIRS "dirs"
+#define SETTING_EDITOR "editor"
+#define SETTING_EDITOR_DEFAULT_ENCODING "default_encoding"
+#define SETTING_EDITOR_AUTO_INDENT "default_auto_indent"
 
 
 class Settings
 {
-public:
+private:
+    class _Base {
+    public:
+        explicit _Base(Settings* settings, const QString& groupName);
+        void setDefault(const QString &key, const QVariant &value);
+        void setValue(const QString &key, const QVariant &value);
+        QVariant value(const QString &key);
+    protected:
+        Settings* mSettings;
+        QString mGroup;
+    };
 
+public:
+    class Dirs: public _Base {
+    public:
+        explicit Dirs(Settings * settings);
+        const QString app() const;
+    };
+
+    class Editor: public _Base {
+    public:
+        explicit Editor(Settings * settings);
+        QByteArray defaultEncoding();
+        void setDefaultEncoding(const QByteArray& encoding);
+        bool autoIndent();
+        void setAutoIndent(bool indent);
+    };
 
 public:
     Settings();
 
-    void setDefault(const QString &key, const QVariant &value);
-    void setValue(const QString &key, const QVariant &value);
-    QVariant value(const QString &key) const;
+    void setDefault(const QString& group, const QString &key, const QVariant &value);
+    void setValue(const QString& group, const QString &key, const QVariant &value);
+    QVariant value(const QString& group, const QString &key);
+
+    Dirs& dirs();
+    Editor& editor();
 private:
     QSettings mSettings;
+    Dirs mDirs;
+    Editor mEditor;
 };
 
+
 extern Settings* pSettings;
 
 #endif // SETTINGS_H