GridView 导出excel表阻止数字字符串变成数字

    protected void gvList_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            for (int i = 0; i < e.Row.Cells.Count; i++)
            {
                e.Row.Cells[i].Attributes.Add("style", "vnd.ms-excel.numberformat: @");
            }
        }
    }