new-feature：1.添加带表达式内容的xml格式化。2.支持带特殊字符的读写，如& < > "。

conf_setting.h

@@ -2,6 +2,7 @@
 #define CONF_SETTING_H
 
 #include <QDialog>
+
 #include "src/config.h"
 
 namespace Ui {
@@ -13,7 +14,7 @@ class CGroupSetting : public QDialog
     Q_OBJECT
 
 public:
-    explicit CGroupSetting(QWidget *parent, CGroupIni* oper);
+    explicit CGroupSetting(QWidget* parent, CGroupIni* oper);
     ~CGroupSetting();
 
 protected:
@@ -28,7 +29,7 @@ private:
 
 private:
     bool auto_add_{false};
-    Ui::CGroupSetting *ui;
+    Ui::CGroupSetting* ui;
     CGroupIni* ini_opr_{};
 };