using UnityEngine; using System.Collections; using System.Runtime.InteropServices; using System.Data; using System.Data.SqlClient; public class ChangeTime {     //Kernel32.dll在32位系统和64位系统有区别，64位系统中需要设置为以管理员身份运行     [DllImport("Kernel32.dll",SetLastError=true,EntryPoint="SetLocalTime")]     static extern int SetLocalTime(ref SystemDateTime lpSystemDateTime);     public static string GetCurrentTimeFromDB()     {         string result = "";         //从数据库中获取系统当前时间         //设置连接字符串         SqlConnection con = new SqlConnection ("Data Source=192.168.0.1;Initial Catalog=DB;User ID=sa;password=123456");         SqlCommand cmd = new SqlCommand ();         cmd.Connection = con;         cmd.CommandType = System.Data.CommandType.Text;         //设置连接语句         cmd.CommandText = "select getdate()";         SqlDataAdapter sda = new SqlDataAdapter(cmd);         //开启         sda.SelectCommand.Connection.Open();         result = sda.SelectCommand.ExecuteScalar().ToString();         //关闭         sda.SelectCommand.Connection.Close();         return result;     }     public static void SetLocalDae(string dateTime)     {         System.DateTime date = System.DateTime.Parse(dateTime);         SystemDateTime sysNew = new SystemDateTime();         //设置属性         sysNew.tYear = short.Parse(date.Year.ToString());         sysNew.tMonth = short.Parse(date.Month.ToString());         sysNew.tDay = short.Parse(date.Day.ToString());         sysNew.tHour = short.Parse(date.Hour.ToString());         sysNew.tMinute = short.Parse(date.Minute.ToString());         sysNew.tSecond = short.Parse(date.Second.ToString());         //调用API，更新系统时间         SetLocalTime(ref sysNew);     } } /// <summary> /// 定义变量用于接收 /// </summary> public class SystemDateTime {     public short tYear;     public short tMonth;     public short tDayOfWeek;     public short tDay;     public short tHour;     public short tMinute;     public short tSecond;     public short tMilliseconds; }