如何正确清理Excel互操作对象？

问题：

I'm using the Excel interop in C# ( ApplicationClass ) and have placed the following code in my finally clause: 我在C＃（ ApplicationClass ）中使用Excel互操作，并将以下代码放在我的finally子句中：

while (System.Runtime.InteropServices.Marshal.ReleaseComObject(excelSheet) != 0) { }
excelSheet = null;
GC.Collect();
GC.WaitForPendingFinalizers();

Although this kind of works, the Excel.exe process is still in the background even after I close Excel. 尽管这种工作有效，但是即使我关闭Excel， Excel.exe进程仍在后台。 It is only released once my application is manually closed. 仅在我的应用程序手动关闭后才释放它。

What am I doing wrong, or is there an alternative to ensure interop objects are properly disposed of? 我在做什么错，还是有其他方法可以确保互操作对象得到正确处理？

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解决方案：

参考一： https://stackoom.com/question/fHm/如何正确清理Excel互操作对象
参考二： https://oldbug.net/q/fHm/How-do-I-properly-clean-up-Excel-interop-objects

来源：oschina

链接：https://my.oschina.net/u/3797416/blog/4255670