diff --git a/src/lib/dstring.cpp b/src/lib/dstring.cpp
index 9b7bf7e..6d69c1d 100644
--- a/src/lib/dstring.cpp
+++ b/src/lib/dstring.cpp
@@ -21,8 +21,6 @@
 
 #include "dstring.h"
 
-#include <assert.h>
-
 DString::DString()
 {
 
@@ -35,9 +33,11 @@ DString::~DString()
 
 std::vector<std::string> DString::splitChars(const char *cs, char c)
 {
-    assert(cs);
-
     std::vector<std::string> ret;
+    if (!cs) {
+        return ret;
+    }
+
     unsigned long idx = 0;
     unsigned long size = strlen(cs);
     bool found = false;
@@ -90,8 +90,9 @@ std::vector<std::string> DString::splitVectorChars(const std::vector<char> &cont
 
 bool DString::startWith(const char *chars, const char *prefix)
 {
-    assert(chars);
-    assert(prefix);
+    if (!chars || !prefix) {
+        return false;
+    }
 
     size_t len;
     len = strlen(prefix);
@@ -105,8 +106,9 @@ bool DString::startWith(const std::string &str, const std::string &prefix)
 
 bool DString::endWith(const char *chars, const char *suffix)
 {
-    assert(chars);
-    assert(suffix);
+    if (!chars || !suffix) {
+        return false;
+    }
 
     size_t charsLen = strlen(chars);
     size_t suffixLen = strlen(suffix);
diff --git a/src/modules/dock/docksettings.cpp b/src/modules/dock/docksettings.cpp
index 63f64ed..b627a55 100644
--- a/src/modules/dock/docksettings.cpp
+++ b/src/modules/dock/docksettings.cpp
@@ -22,18 +22,17 @@
 #include "docksettings.h"
 #include "settings.h"
 
-#include <DConfig>
 #include <QDebug>
 #include <QJsonObject>
 #include <QJsonDocument>
+#include <DConfig>
 
 DCORE_USE_NAMESPACE
 
-static DConfig *dockSettings = Settings::ConfigPtr(configDock);
-static DConfig *appearanceSettings = Settings::ConfigPtr(configAppearance);
-
 DockSettings::DockSettings(QObject *parent)
  : QObject (parent)
+ , dockSettings(Settings::ConfigPtr(configDock))
+ , appearanceSettings(Settings::ConfigPtr(configAppearance))
 {
     init();
 }
diff --git a/src/modules/dock/docksettings.h b/src/modules/dock/docksettings.h
index 13459fe..3bfccc9 100644
--- a/src/modules/dock/docksettings.h
+++ b/src/modules/dock/docksettings.h
@@ -187,6 +187,13 @@ public:
 };
 
 class Settings;
+namespace Dtk {
+namespace Core {
+class DConfig;
+}
+}
+
+using namespace Dtk::Core;
 
 // 任务栏组策略配置类
 class DockSettings: public QObject
@@ -246,6 +253,9 @@ private:
     DockSettings(QObject *paret = nullptr);
     DockSettings(const DockSettings &);
     DockSettings& operator= (const DockSettings &);
+
+    DConfig *dockSettings;
+    DConfig *appearanceSettings;
 };
 
 #endif // DOCKSETTINGS_H
diff --git a/src/modules/launcher/launchersettings.cpp b/src/modules/launcher/launchersettings.cpp
index 735f7df..9df02ff 100644
--- a/src/modules/launcher/launchersettings.cpp
+++ b/src/modules/launcher/launchersettings.cpp
@@ -22,17 +22,16 @@
 #include "launchersettings.h"
 #include "settings.h"
 
-#include <DConfig>
 #include <QDebug>
 #include <QJsonObject>
 #include <QJsonDocument>
+#include <DConfig>
 
 DCORE_USE_NAMESPACE
 
-static DConfig *dconfig = Settings::ConfigPtr(configLauncher);
-
 LauncherSettings::LauncherSettings(QObject *parent)
  : QObject(parent)
+ , dconfig(Settings::ConfigPtr(configLauncher))
 {
     // 绑定属性
     connect(dconfig, &DConfig::valueChanged, this, [&] (const QString &key) {
diff --git a/src/modules/launcher/launchersettings.h b/src/modules/launcher/launchersettings.h
index b1ce0e8..240725d 100644
--- a/src/modules/launcher/launchersettings.h
+++ b/src/modules/launcher/launchersettings.h
@@ -27,6 +27,14 @@
 #include <QObject>
 #include <QVector>
 
+namespace Dtk {
+namespace Core {
+class DConfig;
+}
+}
+
+using namespace Dtk::Core;
+
 // 启动器相关配置
 class LauncherSettings : public QObject
 {
@@ -34,6 +42,7 @@ class LauncherSettings : public QObject
     LauncherSettings(QObject *paret = nullptr);
     LauncherSettings(const LauncherSettings &);
     LauncherSettings& operator= (const LauncherSettings &);
+    DConfig *dconfig;
 
 public:
     static inline LauncherSettings *instance() {
diff --git a/src/modules/startmanager/startmanagersettings.cpp b/src/modules/startmanager/startmanagersettings.cpp
index 39ad843..000373f 100644
--- a/src/modules/startmanager/startmanagersettings.cpp
+++ b/src/modules/startmanager/startmanagersettings.cpp
@@ -23,16 +23,21 @@
 #include "settings.h"
 #include "gsetting.h"
 
-#include <DConfig>
 #include <QDebug>
 #include <QJsonObject>
 #include <QJsonDocument>
+#include <DConfig>
 
 DCORE_USE_NAMESPACE
 
-static DConfig *launchConfig = Settings::ConfigPtr(configLauncher);
-static DConfig *startConfig = Settings::ConfigPtr(configStartdde);
-static DConfig *xsettingsConfig = Settings::ConfigPtr(configXsettings);
+StartManagerSettings::StartManagerSettings(QObject *parent)
+ : QObject (parent)
+ , launchConfig(Settings::ConfigPtr(configLauncher))
+ , startConfig(Settings::ConfigPtr(configStartdde))
+ , xsettingsConfig(Settings::ConfigPtr(configXsettings))
+{
+
+}
 
 QVector<QString> StartManagerSettings::getUseProxyApps()
 {
@@ -101,8 +106,3 @@ QString StartManagerSettings::getDefaultTerminalExecArg()
     }
     return ret;
 }
-
-StartManagerSettings::StartManagerSettings(QObject *paret)
-{
-
-}
diff --git a/src/modules/startmanager/startmanagersettings.h b/src/modules/startmanager/startmanagersettings.h
index 6394402..0541945 100644
--- a/src/modules/startmanager/startmanagersettings.h
+++ b/src/modules/startmanager/startmanagersettings.h
@@ -28,10 +28,17 @@
 #include "common.h"
 #include "gsetting.h"
 
-
 #include <QObject>
 #include <QVector>
 
+namespace Dtk {
+namespace Core {
+class DConfig;
+}
+}
+
+using namespace Dtk::Core;
+
 class StartManagerSettings : public QObject
 {
     Q_OBJECT
@@ -54,9 +61,13 @@ public:
 Q_SIGNALS:
 
 private:
-    StartManagerSettings(QObject *paret = nullptr);
+    StartManagerSettings(QObject *parent = nullptr);
     StartManagerSettings(const StartManagerSettings &);
     StartManagerSettings& operator= (const StartManagerSettings &);
+
+    DConfig *launchConfig;
+    DConfig *startConfig;
+    DConfig *xsettingsConfig;
 };
 
 #endif // STARTMANAGERSETTINGS_H