func：基本添加复制功能，无GUI。

MainWidget.h

@@ -24,23 +24,30 @@ public:
 public:
     void set_work_exe(char* path);
     void generate_table_widget();
-    void push_content(const std::vector<tinyxml2::XMLElement*>& eles);
+    void push_content(const std::vector<element*>& eles);
 
 private:
-    void read();
-    void search();
-    void item_changed_handle(QTableWidgetItem *item);
-    void save();
+    void     read();
+    void     search();
+    void     item_changed_handle(QTableWidgetItem* item);
+    void     save();
+    void     copy_select_line();
+    void     del_select_line();
+    element* get_current_select_key();
+
 private:
-    Ui::MainWidget*                    ui;
-    ConfigIni                          ini_{};
-    CXmlOpr                            xml_{};
-    std::string                        exe_path_{};
-    QTableWidget*                      tab_widget_{};
-    std::vector<tinyxml2::XMLElement*> vec_{};
-    std::vector<tinyxml2::XMLElement*> current_{};
-    std::vector<std::string>           keys_{};
-    std::vector<int>                   width_{};
-    bool                               auto_add_{false};
+    element* get_element_bykey(const QString& key);
+
+private:
+    Ui::MainWidget*          ui;
+    ConfigIni                ini_{};
+    CXmlOpr                  xml_{};
+    std::string              exe_path_{};
+    QTableWidget*            tab_widget_{};
+    std::vector<element*>    vec_{};
+    std::vector<element*>    current_{};
+    std::vector<std::string> keys_{};
+    std::vector<int>         width_{};
+    bool                     auto_add_{false};
 };
 #endif   // MAINWIDGET_H