fix: 第一次启动不提示错误信息

MainForm.Designer.cs

@@ -185,7 +185,7 @@ namespace steam_token
             this.MinimizeBox = false;
             this.Name = "MainForm";
             this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
-            this.Text = "Steam令牌计算器";
+            this.Text = "Steam令牌计算器 v1.0";
             this.FormClosed += new System.Windows.Forms.FormClosedEventHandler(this.mainForm_FormClosed);
             this.menuStrip.ResumeLayout(false);
             this.menuStrip.PerformLayout();

MainForm.cs

@@ -23,13 +23,12 @@ namespace steam_token
             ConfigUtil.Init(new Config());
             InitializeComponent();
 
-            this.timer_time.Start();
-
             while (!ConfigUtil.INIT_SUCCESS) 
             { 
                 CheckConfig();
             }
 
+            this.timer_time.Start();
             // 新开一个线程去初始化数据
             SteamGuardCalcThread.StartThread(this.label_guard, this.progressBar_refresh);
         }

Util/CommonUtil.cs

@@ -11,6 +11,7 @@ namespace steam_token.Util
     public class CommonUtil
     {
 
+        public static bool FIRST_ENABLE  = true;
         public static Config GetConfig()
         {
             return ConfigUtil.Read<Config>();

Util/SteamTwoFactorToken.cs

@@ -46,8 +46,12 @@ namespace steam_token.Util
                 return true;
             }
             catch (Exception)
+            {
+                if (!CommonUtil.FIRST_ENABLE)
                 {
                     MessageBox.Show("shared_secret值校验失败, 请重新设置"); 
+                }
+                CommonUtil.FIRST_ENABLE = false;
                 return false;
             }
         }