本示例将实现文字跑马灯效果：文字超过显示宽度每间隔1s自动向左滚动显示，话不多说，请看代码
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js实现<a href="https://www.jb51.cc/tag/wenzi/" target="_blank" class="keywords">文字</a>超过<a href="https://www.jb51.cc/tag/xianshi/" target="_blank" class="keywords">显示</a>宽度每间隔1s<a href="https://www.jb51.cc/tag/zidong/" target="_blank" class="keywords">自动</a>向左滚动<a href="https://www.jb51.cc/tag/xianshi/" target="_blank" class="keywords">显示</a>