opti：优化替换范围，添加正则替换功能。

MainWidget.ui

@@ -37,6 +37,20 @@
         </property>
        </widget>
       </item>
+      <item>
+       <widget class="QPushButton" name="btnBackup">
+        <property name="text">
+         <string>备份</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QPushButton" name="btnResort">
+        <property name="text">
+         <string>重排序</string>
+        </property>
+       </widget>
+      </item>
       <item>
        <widget class="QPushButton" name="btnSave">
         <property name="text">
@@ -56,21 +70,14 @@
       <item>
        <widget class="QPushButton" name="btnExport">
         <property name="text">
-         <string>导出选择行</string>
+         <string>导出</string>
         </property>
        </widget>
       </item>
       <item>
        <widget class="QPushButton" name="btnImport">
         <property name="text">
-         <string>导入行</string>
-        </property>
-       </widget>
-      </item>
-      <item>
-       <widget class="QPushButton" name="btnBackup">
-        <property name="text">
-         <string>备份快照</string>
+         <string>导入</string>
         </property>
        </widget>
       </item>
@@ -108,7 +115,14 @@
       <item>
        <widget class="QPushButton" name="btnReplace">
         <property name="text">
-         <string>替换为</string>
+         <string>一般替换</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QPushButton" name="btnRxReplace">
+        <property name="text">
+         <string>正则替换</string>
         </property>
        </widget>
       </item>
@@ -125,7 +139,7 @@
       <item>
        <widget class="QCheckBox" name="cbCaseSensitive">
         <property name="text">
-         <string>搜索区分大小写</string>
+         <string>区分大小写</string>
         </property>
        </widget>
       </item>
@@ -153,13 +167,6 @@
         </property>
        </widget>
       </item>
-      <item>
-       <widget class="QPushButton" name="btnResort">
-        <property name="text">
-         <string>重新排序</string>
-        </property>
-       </widget>
-      </item>
      </layout>
     </widget>
    </item>
@@ -282,7 +289,6 @@
   <tabstop>btnSave</tabstop>
   <tabstop>btnExport</tabstop>
   <tabstop>btnImport</tabstop>
-  <tabstop>btnBackup</tabstop>
   <tabstop>edRepPre</tabstop>
   <tabstop>edRepAfter</tabstop>
   <tabstop>btnReplace</tabstop>
@@ -290,7 +296,6 @@
   <tabstop>edSearchKey</tabstop>
   <tabstop>btnSearch</tabstop>
   <tabstop>btnReset</tabstop>
-  <tabstop>btnResort</tabstop>
   <tabstop>btnExit</tabstop>
   <tabstop>edCurPage</tabstop>
   <tabstop>edAllPage</tabstop>