甘特图 API方法clearAll页面内容clearAll Description 从甘特图中移除所有任务和额外元素（如标记） clearAll: () => voidExample// 重新加载甘特图中的数据gantt.load("url1");gantt.clearAll(); /*!*/gantt.load("url2");/*!*/Details请注意，该方法会触发 onClear 事件。Related API onClear Related Guides 任务的基本操作 Need help?Got a question about the documentation? Reach out to our technical support team for help and guidance. For custom component solutions, visit the Services page.