private void AddRightMenu()
{
Microsoft.Office.Core.CommandBar mzBar = appWord.CommandBars["Text"]; //word文档已有的右键菜单Text
Microsoft.Office.Core.CommandBar mzBar = appExcel.CommandBars["cell"]; //excel文档已有的右键菜单cell
Microsoft.Office.Core.CommandBarControls bars = mzBar.Controls;
&nb