linux - gtkdialog 中文本字段中的文本值未刷新

Question

  <hbox>
        <button>
          <input file>bbc_150x150.jpeg</input>
          <variable>bbc</variable>
          <action>txt0=$(eval rsstail -u newsrss.bbc.co.uk/rss/newsonline_uk_edition/front_page/rss.xml -u feeds.bbci.co.uk/news/system/latest_published_content/rss.xml -1 -n 1)</action>
      <action>echo $txt0</action>
      <action>refresh:txt0</action>
        </button>  
      </hbox>

      <hbox>
        <button>
          <input file>bbcbusiness_150x150.jpeg</input>
          <action>unset txt0</action>
          <action>txt0=$(eval rsstail -u newsrss.bbc.co.uk/rss/newsonline_uk_edition/business/rss.xml -1 -n 1)</action>
        <action>echo $txt0</action>
      <action>refresh:txt0</action>
        </button>  
      </hbox>
<vbox scrollable="true" width="600" height="300">
                <text wrap="false" xalign="0">
                    <variable>txt0</variable>
                    <label>This is a static text.</label>
                    <input file>txt0</input>
                </text>
            </vbox>

我将 rsstail 的输出分配给名为 txt0 的变量，然后尝试将新闻变量中存在的 rsstail 输出值打印到文本字段中，但是当我单击两个按钮时，我的文本字段没有刷新，rsstail 输出没有更改。两个按钮都是一样的。

Answer 1

啊哈将 rsstail 输出回显到文本文件中解决了这个问题。像:

<hbox>
            <button>
              <input file>bbc_150x150.jpeg</input>
              <variable>bbc</variable>
              <action>echo $(eval rsstail -u newsrss.bbc.co.uk/rss/newsonline_uk_edition/front_page/rss.xml -u feeds.bbci.co.uk/news/system/latest_published_content/rss.xml -1 -n 3) > txt0.txt</action>
          <action>echo $txt0.txt</action>
          <action>refresh:txt0</action>
            </button>  
</hbox>

<hbox>
            <button>
              <input file>bbcbusiness_150x150.jpeg</input>
              <action>rm txt0.txt</action>
              <action>echo $(eval rsstail -u newsrss.bbc.co.uk/rss/newsonline_uk_edition/business/rss.xml -1 -n 3)>txt0.txt</action>
            <action>echo $txt0.txt</action>
           <action>refresh:txt0</action>
            </button>  
</hbox>

<vbox scrollable="true" width="600" height="300">
                    <text wrap="false" xalign="0">
                        <variable>txt0</variable>
                        <label>This is a static text.</label>
                        <input file>txt0.txt</input>
                    </text>
</vbox>