[Winfrom] 使用一个启动快捷方式，打开2个不同的窗体并且共用一个缓存空间

Process[] processcollection = Process.GetProcessesByName(Application.CompanyName);
            // 如果该程序进程数量大于，则说明该程序已经运行，则弹出提示信息并提出本次操作，否则就创建该程序
            if (processcollection.Length > 1)
            {
                string ss=ConfigurationManager.AppSettings["MainFlag"];
                if (ss=="0")
                {
                    SetConfigValue("MainFlag", "1");
                }               
            }
            else
            {
                Application.EnableVisualStyles();
                Application.SetCompatibleTextRenderingDefault(false);
                // 运行该应用程序
                Application.Run(new FormClient());
            }

 string mainflag = GetConfigValue("MainFlag"); 
            if (mainflag == "1")
            {
                SetConfigValue("MainFlag","3");
                FormMain fm = new FormMain();
                fm.Show();
            }

        /// 

        /// 获取AppSettings中某一节点值
        /// 
        /// 
        public static string GetConfigValue(string key)
        {
            Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
            if (config.AppSettings.Settings[key] != null)
                return config.AppSettings.Settings[key].Value;
            else

                return string.Empty;
        }

        /// 

        /// 修改AppSettings中配置
        /// 
        /// key值
        /// 相应值
        public static bool SetConfigValue(string key, string value)
        {
            try
            {
                Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
                if (config.AppSettings.Settings[key] != null)
                    config.AppSettings.Settings[key].Value = value;
                else
                    config.AppSettings.Settings.Add(key, value);
                config.Save(ConfigurationSaveMode.Modified);
                ConfigurationManager.RefreshSection("appSettings");
                return true;
            }
            catch
            {
                return false;
            }
        }