Qt Desginer 表单中的静态按钮未显示，因为我需要它们

我在Qt Desginer中制作了一个带有小部件布局的程序，一切正常。

但每当我尝试做类似的事情时，它就不起作用。
那些。在工作版本中，按钮是静态的，具体取决于程序扩展，例如：

您可能会注意到按钮始终保持相同的大小。

不幸的是，无论我多么努力，我都无法达到相同的结果，我检查了我拥有的所有设置，但我做不到。

下面是它现在如何工作的示例：

请帮助我，我缺少什么？

工作.ui版本

<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
 <class>MainWindow</class>
 <widget class="QMainWindow" name="MainWindow">
  <property name="geometry">
   <rect>
    <x>0</x>
    <y>0</y>
    <width>433</width>
    <height>576</height>
   </rect>
  </property>
  <property name="windowTitle">
   <string>MainWindow</string>
  </property>
  <widget class="QWidget" name="centralwidget">
   <property name="styleSheet">
    <string notr="true">#centralwidget{background-color: rgb(17, 18, 21);}</string>
   </property>
   <layout class="QVBoxLayout" name="verticalLayout">
    <item alignment="Qt::AlignHCenter">
     <widget class="QWidget" name="widget" native="true">
      <property name="minimumSize">
       <size>
        <width>165</width>
        <height>38</height>
       </size>
      </property>
      <property name="maximumSize">
       <size>
        <width>16777215</width>
        <height>16777215</height>
       </size>
      </property>
      <property name="styleSheet">
       <string notr="true">background-color: rgb(17, 18, 21);</string>
      </property>
      <layout class="QVBoxLayout" name="verticalLayout_2">
       <item>
        <widget class="QLabel" name="label">
         <property name="font">
          <font>
           <weight>75</weight>
           <bold>true</bold>
          </font>
         </property>
         <property name="styleSheet">
          <string notr="true">color: rgb(151, 102, 255);</string>
         </property>
         <property name="text">
          <string>Конвертация YML в JSON</string>
         </property>
         <property name="alignment">
          <set>Qt::AlignCenter</set>
         </property>
        </widget>
       </item>
      </layout>
     </widget>
    </item>
    <item>
     <widget class="QWidget" name="widget_2" native="true">
      <property name="minimumSize">
       <size>
        <width>421</width>
        <height>104</height>
       </size>
      </property>
      <property name="maximumSize">
       <size>
        <width>16777215</width>
        <height>16777215</height>
       </size>
      </property>
      <property name="styleSheet">
       <string notr="true">background-color: rgb(23, 25, 33);</string>
      </property>
      <layout class="QVBoxLayout" name="verticalLayout_3">
       <item>
        <widget class="Line" name="line">
         <property name="styleSheet">
          <string notr="true">background-color: rgb(151, 102, 255);</string>
         </property>
         <property name="orientation">
          <enum>Qt::Horizontal</enum>
         </property>
        </widget>
       </item>
       <item>
        <layout class="QHBoxLayout" name="horizontalLayout">
         <item>
          <spacer name="horizontalSpacer">
           <property name="orientation">
            <enum>Qt::Horizontal</enum>
           </property>
           <property name="sizeHint" stdset="0">
            <size>
             <width>40</width>
             <height>20</height>
            </size>
           </property>
          </spacer>
         </item>
         <item>
          <widget class="QLabel" name="label_2">
           <property name="minimumSize">
            <size>
             <width>61</width>
             <height>60</height>
            </size>
           </property>
           <property name="maximumSize">
            <size>
             <width>61</width>
             <height>60</height>
            </size>
           </property>
           <property name="styleSheet">
            <string notr="true">background-image: url(:/file/images/yml3.png);</string>
           </property>
           <property name="text">
            <string/>
           </property>
          </widget>
         </item>
         <item>
          <widget class="QLineEdit" name="lineEdit_3">
           <property name="minimumSize">
            <size>
             <width>271</width>
             <height>31</height>
            </size>
           </property>
           <property name="maximumSize">
            <size>
             <width>291</width>
             <height>16777215</height>
            </size>
           </property>
           <property name="styleSheet">
            <string notr="true">background-color: rgb(66, 71, 90);
color: rgb(162, 162, 162);
border-radius: 15px; /* Задайте радиус, чтобы сделать края овальными */
padding: 2px;</string>
           </property>
           <property name="cursorPosition">
            <number>0</number>
           </property>
           <property name="alignment">
            <set>Qt::AlignCenter</set>
           </property>
           <property name="placeholderText">
            <string>Название файла.yml</string>
           </property>
          </widget>
         </item>
         <item>
          <widget class="QLabel" name="label_3">
           <property name="minimumSize">
            <size>
             <width>61</width>
             <height>60</height>
            </size>
           </property>
           <property name="maximumSize">
            <size>
             <width>61</width>
             <height>60</height>
            </size>
           </property>
           <property name="styleSheet">
            <string notr="true">background-image: url(:/file/images/json3.png);</string>
           </property>
           <property name="text">
            <string/>
           </property>
          </widget>
         </item>
         <item>
          <spacer name="horizontalSpacer_2">
           <property name="orientation">
            <enum>Qt::Horizontal</enum>
           </property>
           <property name="sizeHint" stdset="0">
            <size>
             <width>40</width>
             <height>20</height>
            </size>
           </property>
          </spacer>
         </item>
        </layout>
       </item>
       <item>
        <widget class="Line" name="line_2">
         <property name="styleSheet">
          <string notr="true">background-color: rgb(151, 102, 255);</string>
         </property>
         <property name="orientation">
          <enum>Qt::Horizontal</enum>
         </property>
        </widget>
       </item>
      </layout>
     </widget>
    </item>
    <item alignment="Qt::AlignHCenter">
     <widget class="QWidget" name="widget_3" native="true">
      <property name="minimumSize">
       <size>
        <width>0</width>
        <height>414</height>
       </size>
      </property>
      <property name="styleSheet">
       <string notr="true">background-color: rgb(17, 18, 21);</string>
      </property>
      <layout class="QVBoxLayout" name="verticalLayout_5">
       <item>
        <layout class="QVBoxLayout" name="verticalLayout_4">
         <property name="spacing">
          <number>13</number>
         </property>
         <property name="topMargin">
          <number>0</number>
         </property>
         <property name="bottomMargin">
          <number>0</number>
         </property>
         <item>
          <widget class="QPushButton" name="addFile">
           <property name="minimumSize">
            <size>
             <width>211</width>
             <height>31</height>
            </size>
           </property>
           <property name="font">
            <font>
             <weight>75</weight>
             <bold>true</bold>
            </font>
           </property>
           <property name="styleSheet">
            <string notr="true">#addFile {
    background-color: rgb(151, 102, 255);
/*background-color: rgb(0, 139, 247);*/
    color: rgb(255, 255, 255);
border-radius: 15px; /* Задайте радиус, чтобы сделать края овальными */
padding: 2px;}


#addFile:hover{
background-color: rgb(164, 205, 217);
}</string>
           </property>
           <property name="text">
            <string>Выбрать файл</string>
           </property>
          </widget>
         </item>
         <item>
          <widget class="QPushButton" name="convert">
           <property name="minimumSize">
            <size>
             <width>211</width>
             <height>31</height>
            </size>
           </property>
           <property name="font">
            <font>
             <weight>75</weight>
             <bold>true</bold>
            </font>
           </property>
           <property name="styleSheet">
            <string notr="true">#convert {
background-color: rgb(151, 102, 255);
/*background-color: rgb(0, 139, 247);*/
    color: rgb(255, 255, 255);
border-radius: 15px; /* Задайте радиус, чтобы сделать края овальными */
padding: 2px;}


#convert:hover{
background-color: rgb(164, 205, 217);
}</string>
           </property>
           <property name="text">
            <string>Конвертировать</string>
           </property>
          </widget>
         </item>
         <item>
          <widget class="QPushButton" name="add">
           <property name="minimumSize">
            <size>
             <width>211</width>
             <height>31</height>
            </size>
           </property>
           <property name="font">
            <font>
             <weight>75</weight>
             <bold>true</bold>
            </font>
           </property>
           <property name="styleSheet">
            <string notr="true">#add {
background-color: rgb(151, 102, 255);
/*background-color: rgb(0, 139, 247);*/
    color: rgb(255, 255, 255);
border-radius: 15px; /* Задайте радиус, чтобы сделать края овальными */
padding: 2px;}


#add:hover{
background-color: rgb(164, 205, 217);
}</string>
           </property>
           <property name="text">
            <string>Добавить Json в Базу даных</string>
           </property>
          </widget>
         </item>
         <item>
          <spacer name="verticalSpacer">
           <property name="orientation">
            <enum>Qt::Vertical</enum>
           </property>
           <property name="sizeHint" stdset="0">
            <size>
             <width>20</width>
             <height>40</height>
            </size>
           </property>
          </spacer>
         </item>
         <item alignment="Qt::AlignHCenter">
          <widget class="QLabel" name="label_4">
           <property name="minimumSize">
            <size>
             <width>200</width>
             <height>200</height>
            </size>
           </property>
           <property name="maximumSize">
            <size>
             <width>9999</width>
             <height>9999</height>
            </size>
           </property>
           <property name="styleSheet">
            <string notr="true">background-image: url(:/file/images/gnvclogo.png);</string>
           </property>
           <property name="text">
            <string/>
           </property>
          </widget>
         </item>
         <item>
          <spacer name="verticalSpacer_3">
           <property name="orientation">
            <enum>Qt::Vertical</enum>
           </property>
           <property name="sizeHint" stdset="0">
            <size>
             <width>20</width>
             <height>40</height>
            </size>
           </property>
          </spacer>
         </item>
         <item>
          <widget class="QPushButton" name="info">
           <property name="minimumSize">
            <size>
             <width>211</width>
             <height>31</height>
            </size>
           </property>
           <property name="font">
            <font>
             <weight>75</weight>
             <bold>true</bold>
            </font>
           </property>
           <property name="styleSheet">
            <string notr="true">#info {
background-color: rgb(151, 102, 255);
/*background-color: rgb(0, 139, 247);*/
    color: rgb(255, 255, 255);
border-radius: 15px; /* Задайте радиус, чтобы сделать края овальными */
padding: 2px;}


#info:hover{
background-color: rgb(164, 205, 217);
}</string>
           </property>
           <property name="text">
            <string>Дополнительная информация</string>
           </property>
          </widget>
         </item>
        </layout>
       </item>
      </layout>
     </widget>
    </item>
   </layout>
  </widget>
 </widget>
 <resources>
  <include location="../qrc_files/file.qrc"/>
 </resources>
 <connections/>
</ui>

不工作 .ui版本：

<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
 <class>MainWindow</class>
 <widget class="QMainWindow" name="MainWindow">
  <property name="geometry">
   <rect>
    <x>0</x>
    <y>0</y>
    <width>443</width>
    <height>592</height>
   </rect>
  </property>
  <property name="windowTitle">
   <string>MainWindow</string>
  </property>
  <widget class="QWidget" name="centralwidget">
   <property name="styleSheet">
    <string notr="true">#centralwidget{background-color: rgb(17, 18, 21);}</string>
   </property>
   <layout class="QVBoxLayout" name="verticalLayout">
    <item>
     <widget class="QWidget" name="widget" native="true">
      <property name="minimumSize">
       <size>
        <width>165</width>
        <height>38</height>
       </size>
      </property>
      <property name="maximumSize">
       <size>
        <width>16777215</width>
        <height>16777215</height>
       </size>
      </property>
      <property name="styleSheet">
       <string notr="true">background-color: rgb(17, 18, 21);</string>
      </property>
      <layout class="QVBoxLayout" name="verticalLayout_2">
       <item>
        <widget class="QLabel" name="label">
         <property name="font">
          <font>
           <weight>75</weight>
           <bold>true</bold>
          </font>
         </property>
         <property name="styleSheet">
          <string notr="true">color: rgb(151, 102, 255);</string>
         </property>
         <property name="text">
          <string>Конвертация YML в JSON</string>
         </property>
         <property name="alignment">
          <set>Qt::AlignCenter</set>
         </property>
        </widget>
       </item>
      </layout>
     </widget>
    </item>
    <item>
     <widget class="QWidget" name="widget_2" native="true">
      <property name="minimumSize">
       <size>
        <width>421</width>
        <height>104</height>
       </size>
      </property>
      <property name="maximumSize">
       <size>
        <width>16777215</width>
        <height>16777215</height>
       </size>
      </property>
      <property name="styleSheet">
       <string notr="true">background-color: rgb(23, 25, 33);</string>
      </property>
      <layout class="QVBoxLayout" name="verticalLayout_3">
       <item>
        <widget class="Line" name="line">
         <property name="styleSheet">
          <string notr="true">background-color: rgb(151, 102, 255);</string>
         </property>
         <property name="orientation">
          <enum>Qt::Horizontal</enum>
         </property>
        </widget>
       </item>
       <item>
        <layout class="QHBoxLayout" name="horizontalLayout">
         <item>
          <spacer name="horizontalSpacer">
           <property name="orientation">
            <enum>Qt::Horizontal</enum>
           </property>
           <property name="sizeHint" stdset="0">
            <size>
             <width>40</width>
             <height>20</height>
            </size>
           </property>
          </spacer>
         </item>
         <item>
          <widget class="QLabel" name="label_2">
           <property name="minimumSize">
            <size>
             <width>61</width>
             <height>60</height>
            </size>
           </property>
           <property name="maximumSize">
            <size>
             <width>61</width>
             <height>60</height>
            </size>
           </property>
           <property name="styleSheet">
            <string notr="true">background-image: url(:/file/images/yml3.png);</string>
           </property>
           <property name="text">
            <string/>
           </property>
          </widget>
         </item>
         <item>
          <widget class="QLineEdit" name="lineEdit_3">
           <property name="minimumSize">
            <size>
             <width>271</width>
             <height>31</height>
            </size>
           </property>
           <property name="maximumSize">
            <size>
             <width>291</width>
             <height>16777215</height>
            </size>
           </property>
           <property name="styleSheet">
            <string notr="true">background-color: rgb(66, 71, 90);
color: rgb(162, 162, 162);
border-radius: 15px; /* Задайте радиус, чтобы сделать края овальными */
padding: 2px;</string>
           </property>
           <property name="cursorPosition">
            <number>0</number>
           </property>
           <property name="alignment">
            <set>Qt::AlignCenter</set>
           </property>
           <property name="placeholderText">
            <string>Название файла.yml</string>
           </property>
          </widget>
         </item>
         <item>
          <widget class="QLabel" name="label_3">
           <property name="minimumSize">
            <size>
             <width>61</width>
             <height>60</height>
            </size>
           </property>
           <property name="maximumSize">
            <size>
             <width>61</width>
             <height>60</height>
            </size>
           </property>
           <property name="styleSheet">
            <string notr="true">background-image: url(:/file/images/json3.png);</string>
           </property>
           <property name="text">
            <string/>
           </property>
          </widget>
         </item>
         <item>
          <spacer name="horizontalSpacer_2">
           <property name="orientation">
            <enum>Qt::Horizontal</enum>
           </property>
           <property name="sizeHint" stdset="0">
            <size>
             <width>40</width>
             <height>20</height>
            </size>
           </property>
          </spacer>
         </item>
        </layout>
       </item>
       <item>
        <widget class="Line" name="line_2">
         <property name="styleSheet">
          <string notr="true">background-color: rgb(151, 102, 255);</string>
         </property>
         <property name="orientation">
          <enum>Qt::Horizontal</enum>
         </property>
        </widget>
       </item>
      </layout>
     </widget>
    </item>
    <item>
     <widget class="QWidget" name="widget_3" native="true">
      <property name="minimumSize">
       <size>
        <width>0</width>
        <height>414</height>
       </size>
      </property>
      <property name="styleSheet">
       <string notr="true">background-color: rgb(17, 18, 21);</string>
      </property>
      <layout class="QVBoxLayout" name="verticalLayout_5">
       <item>
        <layout class="QVBoxLayout" name="verticalLayout_4">
         <property name="spacing">
          <number>13</number>
         </property>
         <property name="topMargin">
          <number>0</number>
         </property>
         <property name="bottomMargin">
          <number>0</number>
         </property>
         <item>
          <widget class="QPushButton" name="addFile">
           <property name="minimumSize">
            <size>
             <width>211</width>
             <height>31</height>
            </size>
           </property>
           <property name="font">
            <font>
             <weight>75</weight>
             <bold>true</bold>
            </font>
           </property>
           <property name="styleSheet">
            <string notr="true">#addFile {
    background-color: rgb(151, 102, 255);
/*background-color: rgb(0, 139, 247);*/
    color: rgb(255, 255, 255);
border-radius: 15px; /* Задайте радиус, чтобы сделать края овальными */
padding: 2px;}


#addFile:hover{
background-color: rgb(164, 205, 217);
}</string>
           </property>
           <property name="text">
            <string>Выбрать файл</string>
           </property>
          </widget>
         </item>
         <item>
          <widget class="QPushButton" name="convert">
           <property name="minimumSize">
            <size>
             <width>211</width>
             <height>31</height>
            </size>
           </property>
           <property name="font">
            <font>
             <weight>75</weight>
             <bold>true</bold>
            </font>
           </property>
           <property name="styleSheet">
            <string notr="true">#convert {
background-color: rgb(151, 102, 255);
/*background-color: rgb(0, 139, 247);*/
    color: rgb(255, 255, 255);
border-radius: 15px; /* Задайте радиус, чтобы сделать края овальными */
padding: 2px;}


#convert:hover{
background-color: rgb(164, 205, 217);
}</string>
           </property>
           <property name="text">
            <string>Конвертировать</string>
           </property>
          </widget>
         </item>
         <item>
          <widget class="QPushButton" name="add">
           <property name="minimumSize">
            <size>
             <width>211</width>
             <height>31</height>
            </size>
           </property>
           <property name="font">
            <font>
             <weight>75</weight>
             <bold>true</bold>
            </font>
           </property>
           <property name="styleSheet">
            <string notr="true">#add {
background-color: rgb(151, 102, 255);
/*background-color: rgb(0, 139, 247);*/
    color: rgb(255, 255, 255);
border-radius: 15px; /* Задайте радиус, чтобы сделать края овальными */
padding: 2px;}


#add:hover{
background-color: rgb(164, 205, 217);
}</string>
           </property>
           <property name="text">
            <string>Добавить Json в Базу даных</string>
           </property>
          </widget>
         </item>
         <item>
          <spacer name="verticalSpacer">
           <property name="orientation">
            <enum>Qt::Vertical</enum>
           </property>
           <property name="sizeHint" stdset="0">
            <size>
             <width>20</width>
             <height>40</height>
            </size>
           </property>
          </spacer>
         </item>
         <item>
          <widget class="QLabel" name="label_4">
           <property name="minimumSize">
            <size>
             <width>200</width>
             <height>200</height>
            </size>
           </property>
           <property name="maximumSize">
            <size>
             <width>9999</width>
             <height>9999</height>
            </size>
           </property>
           <property name="styleSheet">
            <string notr="true">background-image: url(:/file/images/gnvclogo.png);</string>
           </property>
           <property name="text">
            <string/>
           </property>
          </widget>
         </item>
         <item>
          <spacer name="verticalSpacer_3">
           <property name="orientation">
            <enum>Qt::Vertical</enum>
           </property>
           <property name="sizeHint" stdset="0">
            <size>
             <width>20</width>
             <height>40</height>
            </size>
           </property>
          </spacer>
         </item>
         <item>
          <widget class="QPushButton" name="info">
           <property name="minimumSize">
            <size>
             <width>211</width>
             <height>31</height>
            </size>
           </property>
           <property name="font">
            <font>
             <weight>75</weight>
             <bold>true</bold>
            </font>
           </property>
           <property name="styleSheet">
            <string notr="true">#info {
background-color: rgb(151, 102, 255);
/*background-color: rgb(0, 139, 247);*/
    color: rgb(255, 255, 255);
border-radius: 15px; /* Задайте радиус, чтобы сделать края овальными */
padding: 2px;}


#info:hover{
background-color: rgb(164, 205, 217);
}</string>
           </property>
           <property name="text">
            <string>Дополнительная информация</string>
           </property>
          </widget>
         </item>
        </layout>
       </item>
      </layout>
     </widget>
    </item>
   </layout>
  </widget>
 </widget>
 <resources/>
 <connections/>
</ui>

问题解释：

• 在工作版本中，所有按钮始终保持相同的大小，但在缩放窗口时会移至中间（第二个屏幕截图）。
• 但第二个版本不起作用 - 按钮总是增加窗口的宽度，在我提供的屏幕截图中清晰可见。（第四张截图，右侧窗口）

我们需要确保在（第四个屏幕截图）中，右侧窗口的按钮保持相同的大小，并在缩放窗口时移动到中心。