DocTab v1.5

v1.5 Change to left alignment to optimize operation efficiency.
v1.5 更改为左对齐模式，优化运行效率。

DocTab v1.4

v1.4 Fix the problem that the interface does not refresh when dragged into the question file, and optimize the adjustment of the label length.
v1.4 修复拖入问档界面不刷新的问题，优化标签长度调整。

DocTab v1.3

v1.3 Fix the problem that the switching interface is not displayed, and the problem that the document name is not displayed completely.
v1.3 修复切换界面不显示的问题，修复文档名称显示不全问题。

DocTab v1.2

v1.2 Add the function of opening recent documents(R20 API does not support, no update)
v1.2 添加打开最近文档功能（R20 API不支持，没有更新）

DocTab v1.1

v1.1 fixes interface dislocation, optimizes opening documents and checking active documents
v1.1修复界面错位，优化打开文档和检查活动文档

DocTab v1.0

v1.0 basic functions. The current version can only be right-aligned, and future versions may be updated.
v1.0 基本功能，目前版本只能右对齐，以后版本可能会更新。