添加窗体居中显示功能并优化资源释放

AIProofread/Controls/BaseWinForm.cs

@@ -112,6 +112,12 @@ namespace AIProofread.Controls
             this.FormBorderStyle = FormBorderStyle.None;
         }
 
+        public void SetHeight(int height)
+        {
+            this.Height = height;
+            CenterToScreen();
+        }
+
         protected async void InitWebView(WebView2 webView,String url,string name,Action callaback = null)
         {
             //Bridge.InitWebEnvAsync(name, webView);

AIProofread/Controls/FormLogin.cs

@@ -14,6 +14,19 @@ namespace AIProofread.Controls
         public FormLogin()
         {
             InitializeComponent();
+            this.FormClosed += (s, e) =>
+            {
+                // 关闭时释放资源
+                try
+                {
+                    if (web != null)
+                    {
+                        web.Dispose();
+                        web = null;
+                    }
+                }
+                catch { };
+            };
             //Bridge.InitWebEnvAsync("login", web);
             //Bridge.AddEventHandler(BridgeEvent.LoginSuccess, OnLoginSuccess);
         }
@@ -21,6 +34,19 @@ namespace AIProofread.Controls
         {
             this.action = action;
             InitializeComponent();
+            this.FormClosed += (s, e) =>
+            {
+                // 关闭时释放资源
+                try
+                {
+                    if (web != null)
+                    {
+                        web.Dispose();
+                        web = null;
+                    }
+                }
+                catch { };
+            };
         }
 
         private void OnLoginSuccess(object sender, EventArgs e)

AIProofread/Controls/FormWebView.cs

@@ -39,6 +39,7 @@ namespace AIProofread.Controls
         {
             this.Width = (int)(width * dpiScaleFactor);
             this.Height = (int)(height * dpiScaleFactor);
+            CenterToScreen();
         }
 
         private void FormWebView_Load(object sender, EventArgs e)