fix bug45

form.ui

@@ -14,7 +14,14 @@
    <string>Linux 存储管理工具</string>
   </property>
   <widget class="QWidget" name="centralwidget">
-   <layout class="QVBoxLayout" name="verticalLayout">
+   <layout class="QVBoxLayout" name="verticalLayout_2" stretch="0,4,1">
+    <item>
+     <widget class="QPushButton" name="refreshButton">
+      <property name="text">
+       <string>刷新数据</string>
+      </property>
+     </widget>
+    </item>
     <item>
      <widget class="QTabWidget" name="tabWidget">
       <property name="currentIndex">
@@ -24,7 +31,7 @@
        <attribute name="title">
         <string>块设备概览</string>
        </attribute>
-       <layout class="QVBoxLayout" name="verticalLayout_2">
+       <layout class="QVBoxLayout" name="verticalLayout">
         <item>
          <widget class="QTreeWidget" name="treeWidget_block_devices">
           <column>
@@ -130,13 +137,6 @@
       </widget>
      </widget>
     </item>
-    <item>
-     <widget class="QPushButton" name="refreshButton">
-      <property name="text">
-       <string>刷新数据</string>
-      </property>
-     </widget>
-    </item>
     <item>
      <widget class="QTextEdit" name="logOutputTextEdit">
       <property name="readOnly">
@@ -152,7 +152,7 @@
      <x>0</x>
      <y>0</y>
      <width>1000</width>
-     <height>23</height>
+     <height>30</height>
     </rect>
    </property>
   </widget>