国产一级a片免费看高清,亚洲熟女中文字幕在线视频,黄三级高清在线播放,免费黄色视频在线看

            return isLogin = result.Contains("我的首頁");
        }

        /// <summary>
        /// 截取字符串
        /// </summary>
        /// <param name="str">字符串</param>
        /// <param name="startStr">開始字符串</param>
        /// <param name="endStr">結束字符串</param>
        /// <returns>介于開始和結束字符串之間的字符串</returns>
        public static string GetMidString(string str, string startStr, string endStr)
        {
            if (string.IsNullOrEmpty(str) || string.IsNullOrEmpty(startStr) || string.IsNullOrEmpty(endStr))
            {
                return string.Empty;
            }

            int startIndex = str.IndexOf(startStr, StringComparison.CurrentCultureIgnoreCase);

            if (startIndex == -1)
            {
                return string.Empty;
            }

            startIndex += startStr.Length;

            int endIndex = str.IndexOf(endStr, startIndex, StringComparison.CurrentCultureIgnoreCase);

            return str.Substring(startIndex, endIndex - startIndex);
        }