Excel把数据存入共享字符串文件中并返回该字符串的下标

         public static int InsertSharedStringItem(string text, pkg.SharedStringTablePart shareStringPart)
         {
             if (shareStringPart.SharedStringTable == null)
             {
                 shareStringPart.SharedStringTable = new DOS.SharedStringTable();
             }

             int i = ;

             foreach (DOS.SharedStringItem item in shareStringPart.SharedStringTable.Elements<DOS.SharedStringItem>())
             {
                 if (item.InnerText == text)
                 {
                     return i;
                 }
                 i++;
             }

             shareStringPart.SharedStringTable.AppendChild(new DOS.SharedStringItem(new DOS.Text(text)));
             shareStringPart.SharedStringTable.Save();

             return i;
         }