C#修改系统时间

  1 using System;
  2 using System.Drawing;
  3 using System.Collections;
  4 using System.ComponentModel;
  5 using System.Windows.Forms;
  6 using System.Data;
  7 using System.Runtime.InteropServices;
  8 namespace 获取和设置系统时间
  9 {
 10     /// <summary>
 11     /// Form1 的摘要说明。
 12     /// </summary>
 13     public class Form1 : System.Windows.Forms.Form
 14     {
 15         private System.Windows.Forms.GroupBox groupBox1;
 16         private System.Windows.Forms.TextBox textBox1;
 17         private System.Windows.Forms.GroupBox groupBox2;
 18         private System.Windows.Forms.Button button1;
 19         private System.Windows.Forms.Button button2;
 20         private System.Timers.Timer timer1;
 21         private System.Windows.Forms.DateTimePicker setDate;
 22         private System.Windows.Forms.DateTimePicker setTime;
 23         private System.ComponentModel.IContainer components;
 24         [StructLayout(LayoutKind.Sequential)]
 25         public struct SystemTime
 26         {
 27             public ushort wYear;
 28             public ushort wMonth;
 29             public ushort wDayOfWeek;
 30             public ushort wDay;
 31             public ushort wHour;
 32             public ushort wMinute;
 33             public ushort wSecond;
 34             public ushort wMiliseconds;
 35         }
 36          
 37         // 用于设置系统时间
 38         [DllImport("Kernel32.dll")]
 39         public static extern bool SetLocalTime( ref SystemTime sysTime );
 40         // 用于获得系统时间
 41         [DllImport("Kernel32.dll")]
 42         public static extern void GetLocalTime(ref SystemTime sysTime);
 43         public Form1()
 44         {
 45             //
 46             // Windows 窗体设计器支持所必需的
 47             //
 48             InitializeComponent();
 49  
 50             //
 51             // TODO: 在 InitializeComponent 调用后添加任何构造函数代码
 52             //
 53         }
 54  
 55         /// <summary>
 56         /// 清理所有正在使用的资源。
 57         /// </summary>
 58         protected override void Dispose( bool disposing )
 59         {
 60             if( disposing )
 61             {
 62                 if (components != null) 
 63                 {
 64                     components.Dispose();
 65                 }
 66             }
 67             base.Dispose( disposing );
 68         }
 69  
 70         #region Windows 窗体设计器生成的代码
 71         /// <summary>
 72         /// 设计器支持所需的方法 - 不要使用代码编辑器修改
 73         /// 此方法的内容。
 74         /// </summary>
 75         private void InitializeComponent()
 76         {
 77             this.groupBox1 = new System.Windows.Forms.GroupBox();
 78             this.textBox1 = new System.Windows.Forms.TextBox();
 79             this.groupBox2 = new System.Windows.Forms.GroupBox();
 80             this.setTime = new System.Windows.Forms.DateTimePicker();
 81             this.setDate = new System.Windows.Forms.DateTimePicker();
 82             this.button1 = new System.Windows.Forms.Button();
 83             this.button2 = new System.Windows.Forms.Button();
 84             this.timer1 = new System.Timers.Timer();
 85             this.groupBox1.SuspendLayout();
 86             this.groupBox2.SuspendLayout();
 87             ((System.ComponentModel.ISupportInitialize)(this.timer1)).BeginInit();
 88             this.SuspendLayout();
 89             // 
 90             // groupBox1
 91             // 
 92             this.groupBox1.Controls.Add(this.textBox1);
 93             this.groupBox1.Location = new System.Drawing.Point(32, 24);
 94             this.groupBox1.Name = "groupBox1";
 95             this.groupBox1.Size = new System.Drawing.Size(216, 64);
 96             this.groupBox1.TabIndex = 0;
 97             this.groupBox1.TabStop = false;
 98             this.groupBox1.Text = "系统当前时间";
 99             // 
100             // textBox1
101             // 
102             this.textBox1.Location = new System.Drawing.Point(16, 24);
103             this.textBox1.Name = "textBox1";
104             this.textBox1.ReadOnly = true;
105             this.textBox1.Size = new System.Drawing.Size(184, 21);
106             this.textBox1.TabIndex = 1;
107             this.textBox1.Text = "";
108             // 
109             // groupBox2
110             // 
111             this.groupBox2.Controls.Add(this.setTime);
112             this.groupBox2.Controls.Add(this.setDate);
113             this.groupBox2.Location = new System.Drawing.Point(32, 112);
114             this.groupBox2.Name = "groupBox2";
115             this.groupBox2.Size = new System.Drawing.Size(216, 64);
116             this.groupBox2.TabIndex = 1;
117             this.groupBox2.TabStop = false;
118             this.groupBox2.Text = "时间设置为";
119             // 
120             // setTime
121             // 
122             this.setTime.Format = System.Windows.Forms.DateTimePickerFormat.Time;
123             this.setTime.Location = new System.Drawing.Point(128, 24);
124             this.setTime.Name = "setTime";
125             this.setTime.ShowUpDown = true;
126             this.setTime.Size = new System.Drawing.Size(72, 21);
127             this.setTime.TabIndex = 1;
128             this.setTime.TabStop = false;
129             // 
130             // setDate
131             // 
132             this.setDate.Format = System.Windows.Forms.DateTimePickerFormat.Short;
133             this.setDate.Location = new System.Drawing.Point(8, 24);
134             this.setDate.Name = "setDate";
135             this.setDate.Size = new System.Drawing.Size(104, 21);
136             this.setDate.TabIndex = 0;
137             // 
138             // button1
139             // 
140             this.button1.Location = new System.Drawing.Point(40, 200);
141             this.button1.Name = "button1";
142             this.button1.Size = new System.Drawing.Size(64, 32);
143             this.button1.TabIndex = 2;
144             this.button1.Text = "设置";
145             this.button1.Click += new System.EventHandler(this.button1_Click);
146             // 
147             // button2
148             // 
149             this.button2.Location = new System.Drawing.Point(168, 200);
150             this.button2.Name = "button2";
151             this.button2.Size = new System.Drawing.Size(64, 32);
152             this.button2.TabIndex = 3;
153             this.button2.Text = "退出";
154             this.button2.Click += new System.EventHandler(this.button2_Click);
155             // 
156             // timer1
157             // 
158             this.timer1.Enabled = true;
159             this.timer1.SynchronizingObject = this;
160             this.timer1.Elapsed += new System.Timers.ElapsedEventHandler(this.timer1_Elapsed);
161             // 
162             // Form1
163             // 
164             this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
165             this.ClientSize = new System.Drawing.Size(280, 261);
166             this.Controls.Add(this.button2);
167             this.Controls.Add(this.button1);
168             this.Controls.Add(this.groupBox2);
169             this.Controls.Add(this.groupBox1);
170             this.Name = "Form1";
171             this.Text = "获取和设置系统时间";
172             this.groupBox1.ResumeLayout(false);
173             this.groupBox2.ResumeLayout(false);
174             ((System.ComponentModel.ISupportInitialize)(this.timer1)).EndInit();
175             this.ResumeLayout(false);
176  
177         }
178         #endregion
179         /// <summary>
180         /// 应用程序的主入口点。
181         /// </summary>
182         [STAThread]
183         static void Main() 
184         {
185             Application.Run(new Form1());
186         }
187  
188         private void button2_Click(object sender, System.EventArgs e)
189         {
190             this.Close(); // 关闭当前窗体
191         }
192  
193         private void timer1_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
194         {
195             // 清除textBox1上的字符串
196             textBox1.Clear();
197             // 创建SystemTime结构体，用于接收系统当前时间
198             SystemTime systemTime = new SystemTime();
199             GetLocalTime(ref systemTime); // 获得系统的时间并存在SystemTime结构体中
200             // 将系统的时间从 SystemTime 结构体中中取出，并显示在textBox1上
201             textBox1.Text += systemTime.wYear.ToString() +"-";
202             textBox1.Text += systemTime.wMonth.ToString() + "-";
203             textBox1.Text += systemTime.wDay.ToString() + " ";
204             textBox1.Text += systemTime.wHour.ToString() + ":";
205             textBox1.Text += systemTime.wMinute.ToString() + ":";
206             textBox1.Text += systemTime.wSecond.ToString();
207         //  textBox1.Refresh();    
208         }
209         private void button1_Click(object sender, System.EventArgs e)
210         {
211             // 创建SystemTime结构体，用于接收用户设置的时间
212             SystemTime systemTime = new SystemTime();
213             // 从setDate,setTime控件中获取年，月，日，小时，分钟，秒信息，存入SystemTime结构体中
214             systemTime.wYear = (ushort)setDate.Value.Year;
215             systemTime.wMonth = (ushort)setDate.Value.Month;
216             systemTime.wDay = (ushort)setDate.Value.Day;
217             systemTime.wHour = (ushort)setTime.Value.Hour;
218             systemTime.wMinute = (ushort)setTime.Value.Minute;
219             systemTime.wSecond = (ushort)setTime.Value.Second;
220             // 将系统的时间设置为用户指定的时间
221             SetLocalTime(ref systemTime);
222         }
223     }
224 }