加载界面、程序关闭界面、单例模式

DHSoftware/Views/CloseWindow.cs

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+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+using AntdUI;
+namespace DHSoftware.Views
+{
+    public partial class CloseWindow : Window
+    {
+        public CloseWindow()
+        {
+            InitializeComponent();
+            Control.CheckForIllegalCrossThreadCalls = false;
+        }
+
+        /// <summary>
+        /// 窗体对象实例
+        /// </summary>
+        private static CloseWindow _instance;
+        public static CloseWindow Instance
+        {
+            get
+            {
+                if (_instance == null)
+                {
+                    _instance = new CloseWindow();
+                }
+                return _instance;
+            }
+        }
+
+    }
+}