c# - 以编程方式更改系统日期

Question

如何使用 C# 以编程方式更改本地系统的日期和时间？

Answer 1

Here is where I found the answer. ;我已在此处重新发布它以提高清晰度。

定义这个结构:

[StructLayout(LayoutKind.Sequential)]
public struct SYSTEMTIME
{
    public short wYear;
    public short wMonth;
    public short wDayOfWeek;
    public short wDay;
    public short wHour;
    public short wMinute;
    public short wSecond;
    public short wMilliseconds;
}

将以下 extern 方法添加到您的类中:

[DllImport("kernel32.dll", SetLastError = true)]
public static extern bool SetSystemTime(ref SYSTEMTIME st);

然后像这样使用结构的实例调用该方法:

SYSTEMTIME st = new SYSTEMTIME();
st.wYear = 2009; // must be short
st.wMonth = 1;
st.wDay = 1;
st.wHour = 0;
st.wMinute = 0;
st.wSecond = 0;

SetSystemTime(ref st); // invoke this method.