<ui version="4.0" > <class>LayoutDlg</class> <widget class="QDialog" name="LayoutDlg" >  <property name="geometry" >   <rect>    <x>0</x>    <y>0</y>    <width>316</width>    <height>255</height>   </rect>  </property>  <property name="windowTitle" >   <string>布局管理器應用</string>  </property>  <layout class="QGridLayout" >   <item row="0" column="0" >    <widget class="QPushButton" name="constraintPushBtn" >     <property name="text" >      <string>窗口尺寸約束</string>     </property>    </widget>   </item>   <item row="0" column="1" >    <widget class="QPushButton" name="showPushBtn" >     <property name="text" >      <string>編輯框現隱</string>     </property>    </widget>   </item>   <item row="1" column="0" >    <widget class="QPushButton" name="lpolicyPushBtn" >     <property name="text" >      <string>左編輯框策略</string>     </property>    </widget>   </item>   <item row="1" column="1" >    <widget class="QPushButton" name="rpolicyPushBtn" >     <property name="text" >      <string>右編輯框策略</string>     </property>    </widget>   </item>   <item row="2" column="0" >    <widget class="QPushButton" name="lstretchPushBtn" >     <property name="text" >      <string>左編輯框伸縮</string>     </property>    </widget>   </item>   <item row="2" column="1" >    <widget class="QPushButton" name="rstretchPushBtn" >     <property name="text" >      <string>右編輯框伸縮</string>     </property>    </widget>   </item>   <item row="3" column="0" colspan="2" >    <widget class="QGroupBox" name="groupBox" >     <property name="title" >      <string>演示</string>     </property>     <layout class="QHBoxLayout" >      <item>       <widget class="QTextEdit" name="lTextEdit" />      </item>      <item>       <widget class="QTextEdit" name="rTextEdit" />      </item>     </layout>    </widget>   </item>  </layout> </widget> <resources/> <connections/></ui>