WebView检查

[ZhaoZuohong]

Windows下检查WebView2是否安装，引导用户下载。

[ZhaoZuohong]

https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-messageboxw https://stackoverflow.com/questions/4485610/python-message-box-without-huge-library-dependency https://stackoverflow.com/questions/2963263/how-can-i-create-a-simple-message-box-in-python