1.属性页面板增加关闭按钮，关闭时隐藏，默认隐藏。

LAPTOP-SNT8I5JK\Boounion

2025-03-04 cb3d913e147acce92bfacc34dab441abb9ab8735

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<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  <PropertyGroup />
</Project>