20220926晚上看

• https://learn.microsoft.com/en-us/dotnet/api/system.idisposable?view=net-7.0
• https://blog.csdn.net/weixin_39328209/article/details/105965278
• https://learn.microsoft.com/zh-cn/dotnet/api/system.idisposable.dispose?view=net-6.0