func：添加搜索是否大小写敏感选项。

MainWidget.cpp

@@ -9,7 +9,7 @@ MainWidget::MainWidget(QWidget* parent) : QWidget(parent), ui(new Ui::MainWidget
 {
     ui->setupUi(this);
 
-    setWindowTitle(u8"OneLevelXmlOpr v1.2");
+    setWindowTitle(u8"OneLevelXmlOpr v1.2.1");
     setWindowIcon(QIcon("://resource/xml.ico"));
 
     setMinimumWidth(900);
@@ -27,6 +27,7 @@ MainWidget::MainWidget(QWidget* parent) : QWidget(parent), ui(new Ui::MainWidget
     ui->btnCopySelectLine->setEnabled(false);
     ui->btnDelSelectLine->setEnabled(false);
     ui->edAllPage->setEnabled(false);
+    ui->cbCaseSensitive->setChecked(true);
 
     connect(ui->btnRead, &QPushButton::clicked, this, [&]() { read(); });
     connect(ui->btnSearch, &QPushButton::clicked, this, [&]() { search(); });
@@ -152,8 +153,15 @@ void MainWidget::push_content(const std::vector<tinyxml2::XMLElement*>& eles, st
     }
 
     if (page < 1 || page > all_page_) {
-        CUtil::msg(this, u8"不在范围内");
+        if (eles.size() > 0) {
+            CUtil::msg(this, u8"页码不在范围内");
+            return;
+        }
+        tab_widget_->clearContents();
+        tab_widget_->setRowCount(0);
+        cur_page_ = 0;
         ui->edCurPage->setText(QString::number(cur_page_));
+        ui->edAllPage->setText(QString::number(all_page_));
         return;
     }
 
@@ -229,11 +237,19 @@ void MainWidget::search()
     if (tab_widget_ == nullptr) {
         return;
     }
+
+    if (!ui->cbCaseSensitive->isChecked()) {
+        key = key.toUpper();
+    }
+
     current_.clear();
     for (const auto& item : vec_) {
         for (auto i = 0; i < keys_.size(); ++i) {
             const char* data = item->Attribute(keys_[i].c_str());
             QString     qdata(data);
+            if (!ui->cbCaseSensitive->isChecked()) {
+                qdata = qdata.toUpper();
+            }
             if (!qdata.contains(key)) {
                 continue;
             }

MainWidget.ui

@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>573</width>
-    <height>602</height>
+    <width>850</width>
+    <height>794</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -36,6 +36,13 @@
        </property>
       </widget>
      </item>
+     <item>
+      <widget class="QCheckBox" name="cbCaseSensitive">
+       <property name="text">
+        <string>区分大小写</string>
+       </property>
+      </widget>
+     </item>
      <item>
       <widget class="QLineEdit" name="edSearchKey">
        <property name="sizePolicy">