第一个

复制代码 代码如下:

System.Runtime.InteropServices.Marshal.ReleaseComObject(sheets);

System.Runtime.InteropServices.Marshal.ReleaseComObject(worksheet);

System.Runtime.InteropServices.Marshal.ReleaseComObject(excelApp);

System.Runtime.InteropServices.Marshal.ReleaseComObject(range);

excelApp = null;

wbclass = null;

sheets = null;

worksheet = null;

range = null;

GC.Collect();

GC.WaitForPendingFinalizers();

释放不彻底，还是有进程存在。

第二种

复制代码 代码如下:

//调用底层函数获取进程标示

[DllImport("User32.dll")]

public static extern int GetWindowThreadProcessId(IntPtr hWnd, out int ProcessId);

private static void KillExcel(Microsoft.Office.Interop.Excel.Application theApp)

{

int id = 0;

IntPtr intptr = new IntPtr(theApp.Hwnd);

System.Diagnostics.Process p = null;

try

{

GetWindowThreadProcessId(intptr, out id);

p = System.Diagnostics.Process.GetProcessById(id);

if (p != null)

{

p.Kill();

p.Dispose();

}

}

catch (Exception ex)

{

}

}

这个方法比较好，我试过了可以关闭掉进程。