doc.Range.Bookmarks["CBJYQQDFS110"].Text = "";
Aspose.Words.DocumentBuilder builder = new Aspose.Words.DocumentBuilder(doc);
builder.MoveToBookmark("CBJYQQDFS110");
builder.Font.Name = "Wingdings 2";
builder.Font.Size = 12.0;
builder.Write(char.ConvertFromUtf32(82));
原文：http://www.cnblogs.com/janehlp/p/4545133.html