ver：一个可用版本，基本包含导入导出数据，备份，替换，搜索等功能。

MainWidget.cpp

@@ -3,16 +3,18 @@
 #include <QSettings>
 #include <QFile>
 #include <QKeyEvent>
+#include <QDateTime>
+#include <filesystem>
 #include "src/data_edit.h"
 #include "./ui_MainWidget.h"
 
 constexpr std::size_t g_OnePage = 100;
-
+namespace fs = std::filesystem;
 MainWidget::MainWidget(QWidget* parent) : QWidget(parent), ui(new Ui::MainWidget)
 {
     ui->setupUi(this);
 
-    setWindowTitle(u8"OneLevelXmlOpr v1.2.8");
+    setWindowTitle(u8"OneLevelXmlOpr v1.2.9");
     setWindowIcon(QIcon("://resource/xml.ico"));
 
     setMinimumWidth(900);
@@ -45,11 +47,12 @@ MainWidget::MainWidget(QWidget* parent) : QWidget(parent), ui(new Ui::MainWidget
         read(file);
     });
     connect(ui->btnSearch, &QPushButton::clicked, this, [&]() { search(); });
-    connect(ui->btnRead, &QPushButton::clicked, this,
-            [&]() { read(ui->edStatus->text().trimmed()); });
+    connect(ui->btnBackup, &QPushButton::clicked, this, [&]() { backup_file(); });
+    connect(ui->btnRead, &QPushButton::clicked, this, [&]() { read(ui->edStatus->text().trimmed()); });
     connect(ui->btnSave, &QPushButton::clicked, this, [&]() { save(); });
     connect(ui->btnExit, &QPushButton::clicked, this, [&]() { QApplication::exit(0); });
     connect(ui->btnReset, &QPushButton::clicked, this, &MainWidget::reset);
+    connect(ui->btnReplace, &QPushButton::clicked, this, &MainWidget::replace_content);
     connect(ui->btnExport, &QPushButton::clicked, this, &MainWidget::copy_multi_data);
     connect(ui->btnPagePre, &QPushButton::clicked, this, [&]() {
         unsigned int cur = ui->edCurPage->text().toUInt();
@@ -60,6 +63,14 @@ MainWidget::MainWidget(QWidget* parent) : QWidget(parent), ui(new Ui::MainWidget
         edit.is_import_ = true;
         edit.set_xml_opr(&xml_);
         edit.exec();
+
+        if (!edit.is_import_sucess_) {
+            return;
+        }
+        xml_.get_all_elements(vec_);
+        current_.clear();
+        current_ = vec_;
+        push_content(current_);
     });
     connect(ui->btnPageNext, &QPushButton::clicked, this, [&]() {
         unsigned int cur = ui->edCurPage->text().toUInt();
@@ -159,8 +170,7 @@ void MainWidget::generate_table_widget()
     tab_widget_->setContextMenuPolicy(Qt::CustomContextMenu);
     connect(tab_widget_, &QTableWidget::itemChanged, this,
             [&](QTableWidgetItem* item) { item_changed_handle(item); });
-    connect(tab_widget_, &QTableWidget::customContextMenuRequested, this,
-            &MainWidget::show_custom_menu);
+    connect(tab_widget_, &QTableWidget::customContextMenuRequested, this, &MainWidget::show_custom_menu);
     auto config = ini_.get_config();
     auto keys = splitString(config.purpose, ",");
     keys_.clear();
@@ -620,3 +630,73 @@ void MainWidget::copy_multi_data()
     edit.set_data(ret);
     edit.exec();
 }
+
+void MainWidget::replace_content()
+{
+    if (tab_widget_ == nullptr) {
+        return;
+    }
+    QString key = ui->edRepPre->text();
+    QString after = ui->edRepAfter->text();
+    if (key.isEmpty()) {
+        CUtil::msg(this, u8"替换前数据为空。");
+        return;
+    }
+    if (ui->cbRepOnlySelect->isChecked()) {
+        QModelIndexList indexList = tab_widget_->selectionModel()->selectedRows();
+        if (indexList.size() < 1) {
+            CUtil::msg(this, u8"无选择数据");
+            return;
+        }
+        QString ret;
+        for (int i = 0; i < indexList.size(); ++i) {
+            Element_t* e = get_element_by_row(indexList[i].row());
+            if (e == nullptr) {
+                continue;
+            }
+            auto* element = e->FirstAttribute();
+            while (element) {
+                QString content(element->Value());
+                if (content.contains(key)) {
+                    content.replace(key, after);
+                    e->SetAttribute(element->Name(), content.toStdString().c_str());
+                }
+                element = element->Next();
+            }
+        }
+    } else {
+        if (!CUtil::affirm(this, u8"确认", u8"确认进行全局替换吗？")) {
+            return;
+        }
+
+        for (auto& data : vec_) {
+            auto* element = data->FirstAttribute();
+            while (element) {
+                QString content(element->Value());
+                content.replace(key, after);
+                data->SetAttribute(element->Name(), content.toStdString().c_str());
+                element = element->Next();
+            }
+        }
+    }
+
+    xml_.get_all_elements(vec_);
+    current_.clear();
+    current_ = vec_;
+    push_content(current_);
+}
+
+void MainWidget::backup_file()
+{
+    if (tab_widget_ == nullptr) {
+        return;
+    }
+
+    QString time = QDateTime::currentDateTime().toString("yyyy-MMdd-hhmmss");
+    if (!xml_.backup_file(fs::path(exe_path_).parent_path().append("backup").string(), time.toStdString())) {
+        CUtil::msg(this, u8"备份失败。");
+    }
+    else {
+        CUtil::msg(this, u8"备份完成。");
+    }
+}