C# 设置系统时间

在程序中有时需要系统时间准确，为了方便修改时间，做了个时间修改的，代码如下


using System;


using System.Collections.Generic;


using System.ComponentModel;


using System.Data;


using System.Drawing;


using System.Text;


using System.Windows.Forms;


using System.Runtime.InteropServices;


namespace Qualification




...{


public partial class FormDateSet : Form




...{


public FormDateSet()




...{


InitializeComponent();




}


//调用Kernel32.DLL


[DllImport("Kernel32.dll")]


public static extern void GetLocalTime(SystemTime st);


[DllImport("Kernel32.dll")]


public static extern void SetLocalTime(SystemTime st);






[StructLayout(LayoutKind.Sequential)]


public class SystemTime




...{


public ushort wYear;


public ushort wMonth;


public ushort wDayOfWeek;


public ushort wDay;


public ushort Whour;


public ushort wMinute;


public ushort wSecond;


public ushort wMilliseconds;




}


private void FormDateSet_Load(object sender, EventArgs e)




...{




}


//取得当前系统时间


private void timer1_Tick(object sender, EventArgs e)




...{


SystemTime st = new SystemTime();


GetLocalTime(st);


this.textBox1.Text = st.wYear.ToString()+"-";


this.textBox1.Text = this.textBox1.Text + st.wMonth.ToString() + "-";


this.textBox1.Text = this.textBox1.Text + st.wDay.ToString() + " ";


this.textBox1.Text = this.textBox1.Text + st.Whour.ToString() + ":" + st.wMinute.ToString() + ":" + st.wSecond.ToString();


}




private void dateTimePicker1_ValueChanged(object sender, EventArgs e)




...{




}


//校对系统时间


private void Btn_set_Click(object sender, EventArgs e)




...{


try




...{




SystemTime st = new SystemTime();


st.wYear = (ushort)this.dateTimePicker1.Value.Year;


st.wMonth = (ushort)this.dateTimePicker1.Value.Month;


st.wDay = (ushort)this.dateTimePicker1.Value.Day;


st.Whour = (ushort)this.dateTimePicker1.Value.Hour;


st.wMinute = (ushort)this.dateTimePicker1.Value.Minute;


st.wSecond = (ushort)this.dateTimePicker1.Value.Second;


SetLocalTime(st);


MessageBox.Show("系统时间设置成功!", "系统时间设置成功!", MessageBoxButtons.OK, MessageBoxIcon.Information);


}


catch




...{


MessageBox.Show("系统时间设置失败!", "设置失败", MessageBoxButtons.OK, MessageBoxIcon.Information);


}


finally




...{}


}


}


}