func：添加属性编辑功能。

MainWidget.cpp

@@ -8,7 +8,7 @@ MainWidget::MainWidget(QWidget* parent) : QWidget(parent), ui(new Ui::MainWidget
 {
     ui->setupUi(this);
 
-    setWindowTitle(u8"OneLevelXmlOpr v1.1");
+    setWindowTitle(u8"OneLevelXmlOpr v1.2");
     setWindowIcon(QIcon("://resource/xml.ico"));
 
     setMinimumWidth(900);
@@ -34,6 +34,7 @@ MainWidget::MainWidget(QWidget* parent) : QWidget(parent), ui(new Ui::MainWidget
     connect(ui->btnDelSelectLine, &QPushButton::clicked, this, [&]() { del_select_line(); });
     connect(ui->btnExit, &QPushButton::clicked, this, [&]() { QApplication::exit(0); });
     connect(ui->btnReset, &QPushButton::clicked, this, &MainWidget::reset);
+    connect(ui->btnEditProperty, &QPushButton::clicked, this, &MainWidget::edit_property);
     connect(ui->btnPagePre, &QPushButton::clicked, this, [&]() {
         unsigned int cur = ui->edCurPage->text().toUInt();
         push_content(current_, cur - 1);
@@ -60,6 +61,24 @@ void MainWidget::copy_key()
     CUtil::msg(this, u8"已复制");
 }
 
+void MainWidget::edit_property()
+{
+    Element_t* target = get_current_select_key();
+    if (target == nullptr) {
+        return;
+    }
+    Property_t property;
+    xml_.get_key_value(target, property);
+    attri_edit_->set_attribute(property, false);
+    attri_edit_->exec();
+
+    if (!attri_edit_->is_ok_) {
+        return;
+    }
+    attri_edit_->get_attribute(property);
+    xml_.key_value_to_element(target, property);
+}
+
 MainWidget::~MainWidget()
 {
     delete attri_edit_;