添加项目文件。

CowainHmi/FrmStart.cs

@@ -0,0 +1,46 @@
+using PCHMI;
+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;
+
+namespace CowainHmi
+{
+    public partial class FrmStart : Form
+    {
+        public FrmStart()
+        {
+            InitializeComponent();
+        }
+
+        private void btnEnter_Click(object sender, EventArgs e)
+        {
+            System.Windows.Forms.Form frm = new System.Windows.Forms.Form();//这是启动画面出现之后的主程序窗口
+            frm.Show();
+            this.Close();
+        }
+
+        private void FrmStart_MouseDown(object sender, MouseEventArgs e)
+        {
+            new CTR_MOVE().MouseDown(this.Handle);
+        }
+
+        private void btnClose_Click(object sender, EventArgs e)
+        {
+            this.Close();
+            Application.Exit();
+        }
+
+        private void 图片2_Click(object sender, EventArgs e)
+        {
+            System.Windows.Forms.Form frm = new System.Windows.Forms.Form();//这是启动画面出现之后的主程序窗口
+            frm.Show();
+            this.Close();
+        }
+    }
+}