Finalize

https://msdn.microsoft.com/en-us/library/system.object.finalize%28v=vs.110%29.aspx

https://msdn.microsoft.com/en-us/library/system.object.finalize%28v=vs.100%29.aspx

Dispose

https://msdn.microsoft.com/en-us/library/b1yfkh5e%28v=vs.110%29.aspx

https://msdn.microsoft.com/en-us/library/fs2xkftw%28v=vs.110%29.aspx

https://msdn.microsoft.com/library/b1yfkh5e%28v=vs.100%29.aspx

SafeHandle

https://msdn.microsoft.com/en-us/library/system.runtime.interopservices.safehandle%28v=vs.100%29.aspx

GC

https://msdn.microsoft.com/en-us/library/system.gc%28v=vs.110%29.aspx

http://www.cnblogs.com/yukaizhao/archive/2011/11/23/dot_net_GC_1.html