Class Libraries & REST APIs for the developers to manipulate & process Files from Word, Excel, PowerPoint, Visio, PDF, CAD & several other categories in Web, Desktop or Mobile apps. Develop & deploy on Windows, Linux, MacOS & Android platforms....get_Item(int) 和 set_Item(int index, NumberFormat value) - 通过索引获取或设置列表中的数字格式。...向列表中添加数字格式。 public void insert(int index, NumberFormat value) 插入数字格式到列表中。...