C#设立系统日期和时间

C#设置系统日期和时间的代码分享，使用C#代码设置系统日期和时间的程序开发步骤如下：（1）为了使用DllImportAttribute类，需要引入命名空间：using System.Runtime.InteropServices;（2）自定义类SetSystemDateTime用于设置系统时间。代码如下：        public class SetSystemDateTime        {        [DllImportAttribute( "Kernel32.dll" )]        public static extern void GetLocalTime(SystemTime st ) ;        [DllImportAttribute( "Kernel32.dll"  )]        public static extern void SetLocalTime(SystemTime st ) ;        }（3）自定义类SystemTime用于定义日期时间类。代码如下：        [StructLayoutAttribute( LayoutKind.Sequential)]        public class SystemTime        {        public ushort vYear;        public ushort vMonth;        public ushort vDayOfWeek;        public ushort vDay;        public ushort vHour;        public ushort vMinute;        public ushort vSecond;        }（4）选择一个时间，单击“设置系统新日期时间”按钮，在该按钮的Click事件下，调用自定义类SetSystemDateTime和SystemTime，修改当前系统日期时间。代码如下：private void button2_Click(object sender, EventArgs e)        {            //设置系统当前日期时间            if (MessageBox.Show("您真的确定更改系统当前日期和时间吗？", "信息提示", MessageBoxButtons.OK) == DialogResult.OK)            {                DateTime Year = this.dateTimePicker1.Value;                SystemTime MySystemTime = new SystemTime();                SetSystemDateTime.GetLocalTime(MySystemTime);                MySystemTime.vYear = (ushort)this.dateTimePicker1.Value.Year;                MySystemTime.vMonth = (ushort)this.dateTimePicker1.Value.Month;                MySystemTime.vDay = (ushort)this.dateTimePicker1.Value.Day;                MySystemTime.vHour = (ushort)this.dateTimePicker2.Value.Hour;                MySystemTime.vMinute = (ushort)this.dateTimePicker2.Value.Minute;                MySystemTime.vSecond = (ushort)this.dateTimePicker2.Value.Second;                SetSystemDateTime.SetLocalTime(MySystemTime);            }        }