添加项目文件。

C-Windows-1/UserPassword.cs

@@ -0,0 +1,54 @@
+using Microsoft.Win32;
+using System;
+using System.Windows.Forms;
+
+namespace C_Windows_1
+{
+    public partial class UserPassword : Form
+    {
+        public UserPassword()
+        {
+            InitializeComponent();
+        }
+
+        private void UserPassword_Load(object sender, EventArgs e)
+        {
+            New_Pwd1.Focus();
+        }
+
+        private void Modify_pwd_Click(object sender, EventArgs e)
+        {
+            if (New_Pwd1.Text == New_Pwd2.Text)
+            {
+                SetParameters();
+                this.Close();
+            }
+            else
+            {
+                MessageBox.Show("两次输入的密码不一致！");
+            }
+        }
+
+        //写入注册表内容
+        private void SetParameters()
+        {
+
+            RegistryKey regName;
+
+            regName = Registry.CurrentUser.OpenSubKey("SOFTWARE\\Microsoft\\PMD\\1.0\\User-LL18-Set", true);
+
+            if (regName is null)
+            {
+                regName = Registry.CurrentUser.CreateSubKey("SOFTWARE\\Microsoft\\PMD\\1.0\\User-LL18-Set");
+            }
+
+            regName.SetValue("log_pwd", New_Pwd1.Text);
+
+
+
+            regName.Close();
+        }
+
+
+    }
+}