通过调用系统API设置系统时间。using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices;namespace talefox.ShareLib{
public class SystemDateTime
{
[DllImport("kernel32.dll")]
private static extern bool SetLocalTime(ref SYSTEMTIME time); [StructLayout(LayoutKind.Sequential)]
private struct SYSTEMTIME
{
public short year;
public short month;
public short dayOfWeek;
public short day;
public short hour;
public short minute;
public short second;
public short milliseconds;
}
/// <summary>
/// 设置系统时间
/// </summary>
/// <param name="dt"></param>
public static void SetDate(DateTime dt)
{
SYSTEMTIME st; st.year = (short)dt.Year;
st.month = (short)dt.Month;
st.dayOfWeek = (short)dt.DayOfWeek;
st.day = (short)dt.Day;
st.hour = (short)dt.Hour;
st.minute = (short)dt.Minute;
st.second = (short)dt.Second;
st.milliseconds = (short)dt.Millisecond; SetLocalTime(ref st);
}
}
}
using System.Text;
using System.Runtime.InteropServices;namespace talefox.ShareLib{
public class SystemDateTime
{
[DllImport("kernel32.dll")]
private static extern bool SetLocalTime(ref SYSTEMTIME time); [StructLayout(LayoutKind.Sequential)]
private struct SYSTEMTIME
{
public short year;
public short month;
public short dayOfWeek;
public short day;
public short hour;
public short minute;
public short second;
public short milliseconds;
}
/// <summary>
/// 设置系统时间
/// </summary>
/// <param name="dt"></param>
public static void SetDate(DateTime dt)
{
SYSTEMTIME st; st.year = (short)dt.Year;
st.month = (short)dt.Month;
st.dayOfWeek = (short)dt.DayOfWeek;
st.day = (short)dt.Day;
st.hour = (short)dt.Hour;
st.minute = (short)dt.Minute;
st.second = (short)dt.Second;
st.milliseconds = (short)dt.Millisecond; SetLocalTime(ref st);
}
}
}
方法后,时间仍然没有改变,这是我现在困惑的问题.
在API种结构的定义还是比较严格的,数据类型不同可能会导致内存读写错误,而无法正确调用相应的API函数。
{
SetDate(DateTime.Now.AddYears(5));
}
如果没改变,可以有其他程序影响(系统时间保护程序).
开始→运行→输入"gpedit.msc" 打开组策略,依次打开计算机配置→windows设置→安全设置→本地策略→用户权利指派,然后找到"更改系统时间",双击"更改系统时间",点击"添加用户或组",把你的系统用户名添加进去就可以更改系统时间了。