This example shows to post a scrolling message within the login page to warn or advise users of important announcements.
这个示例在登录页面中显示滚动的消息，从而警告用户或发出重要的公告。
As soon as QApply starts back up, the message will disappear and the graphs will resume scrolling.
一旦QApply重新运行，这条消息将消失，这些图将恢复滚动。
Use images and graphics that support your sales message. - Keep animation, blinking text, and scrolling text to a minimum. They distract the reader from focusing on your text.
图像与图片应该可以说明销售信息。尽量减少使用图像、闪动文本、滚动文本，否则会转移浏览者对于文字内容的注意力。
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