private string url = string.Empty;
        [WebBrowsable(true)]
        [WebDisplayName("浏览页地址")]
        [WebDescription("配置杂草信息的浏览页地址")]
        [Category("杂项设置")]
        [Personalizable(true)]
        public string thisurl
        {
            get
            {
                return url;
            }
            set
            {
                url = value;
            }
        }