C # versions of the Timer class are accurate to microseconds, and a decimal point is retained to support output in units of year, month, day, hour, minute, second

 Class timecount <br/>{< br/> // temporary variable that stores the maximum year value that the current class can represent <br/> Private Static ulong maxyear = 0; </P> <p> /// <summary> <br/> // obtain the maximum number of copies per year in milliseconds <br/> /// </Summary> <br/> // <returns> maximum number of copies per year </returns> <br/> Public static ulong getmaxyearcount () <br/>{< br/> If (timecount. maxyear! = 0) <br/> return timecount. maxyear; <br/> else <br/> {<br/> double ulongmax = math. pow (2, 64); <br/> double yeartomiliseconds = (double) 12 * (double) 30 * (double) 24 * (double) 3600 * (double) 1000; <br/> timecount. maxyear = (ulong) (ulongmax/yeartomiliseconds); <br/> return timecount. maxyear; <br/>}</P> <p> // <summary> <br/> // converts the current system time to milliseconds. <br/> /// </Summary> <br/> /// <returns> current system time The corresponding number of milliseconds </returns> <br/> Public static ulong getcurrenttimebymilisec () <br/>{< br/> datetime T = datetime. now; <br/> ulong millisecond = (ulong) T. year * 12 + (ulong) T. month) * 30 + (ulong) T. day) * 24 + (ulong) T. hour) * 60 + (ulong) T. minute) * 60 <br/> + (ulong) T. second) * 1000 + (ulong) (T. millisecond); <br/> return millisecond; <br/>}</P> <p> /// <summary> <br/> // less practical function, given three inputs, get the time difference, in string form <Br/> /// </Summary> <br/> // <Param name = "str"> returns the prefix before the specified time, for example, "the time used to draw XX is: "</param> <br/> /// <Param name =" A "> first time </param> <br/> /// <Param name =" B "> second time, the absolute value </param> <br/> // <returns> </returns> <br/> Public static string gettimeinterval (string STR, ulong A, ulong B) <br/>{< br/> ulong interval = B-A; <br/> STR + = convert. tostring (math. ABS (double) interval)/1000); <br/> Str + = "Seconds"; <br/> return STR; <br/>}</P> <p> // <summary> <br/> // obtain the time difference between the two specified time (milliseconds, the final value will go to the absolute value <br/> /// </Summary> <br/> /// <Param name = "A"> earlier time (in milliseconds) </param> <br/> // <Param name = "B"> later time (MS) </param> <br/> // <returns> </returns> <br/> Public static double gettimeintervalbysec (ulong A, ulong B) <br/>{< br/> return math. ABS (double) B-(double) A)/(double) 1000); <br/>}</P> <p> // <summary> <br />/// Retain a decimal point <br/> /// </Summary> <br/> /// <Param name = "double1"> a decimal point </param> <br/> // <returns> one string </returns> <br/> Public static string remainonefigureafterdot (double double1) <br/>{< br/> string tempstr = double1.tostring (); <br/> string double1str; <br/> If (tempstr = "") <br/>{< br/> return "0.0"; <br/>}< br/> int Index = tempstr. indexof (". "); <br/> If (Index =-1) <br/> {<br/> Double1str = tempstr + ". 0 "; <br/> return double1str; <br/>}< br/> else <br/>{< br/> If (tempstr. length <index + 2) <br/> return tempstr + ". 0 "; <br/> else <br/> {<br/> double1str = tempstr. substring (0, index + 2); <br/> return double1str; <br/>}</P> <p> /// <summary> <br/> // converts the time to the second (year, month, and day). <br/> // </Summary> <br/> Public Enum ymdhms <br/> {<br/> yearsc = 365*24*3600, <br/> Monsc = 30*24*3600, <br/> daysc = 24*3600, <br/> housc = 3600, <br/> minsc = 60 <br/>}</P> <p> /// <summary> <br/> /// converts a string to seconds. unit time, converts the string to a time string in the unit of year, month, day, hour, minute, and second, and keep one decimal point in the last second <br/> /// </Summary> <br/> /// <Param name = "seconds"> seconds, string format </param> <br/> // <returns> </returns> <br/> Public static string secondstoyymmddhhmmss (string seconds) <br/>{< br/> double secondsdble = convert. todouble (SE Conds); <br/> return timecount. secondstoyymmddhhmmss (secondsdble ); <br/>}</P> <p> // <summary> <br/> // time in seconds in the int format, converts the string to a time string in the unit of year, month, day, hour, minute, and second, and keep one decimal point in the last second <br/> /// </Summary> <br/> /// <Param name = "seconds"> seconds, int format </param> <br/> // <returns> </returns> <br/> Public static string secondstoyymmddhhmmss (INT seconds) <br/>{< br/> double secondsdble = convert. todouble (seconds); <br/> return timecoun T. secondstoyymmddhhmmss (secondsdble ); <br/>}</P> <p> // <summary> <br/> // time in seconds in ulong format, converts the string to a time string in the unit of year, month, day, hour, minute, and second, and keep one decimal point in the last second <br/> /// </Summary> <br/> /// <Param name = "seconds"> seconds, ulong format </param> <br/> // <returns> </returns> <br/> Public static string secondstoyymmddhhmmss (ulong seconds) <br/>{< br/> double secondsdble = convert. todouble (seconds); <br/> return timecount. secondstoyymmddhhmmss (Secondsdble ); <br/>}</P> <p> // <summary> <br/> // time in seconds in double format, converts the string to a time string in the unit of year, month, day, hour, minute, and second, and retain one decimal point in the last second <br/> /// </Summary> <br/> /// <Param name = "secondsdble"> seconds, double format </param> <br/> // <returns> </returns> <br/> Public static string secondstoyymmddhhmmss (double secondsdble) <br/>{< br/> string returnstr = ""; <br/> If (secondsdble = 0) <br/>{< br/> return "0.0 seconds"; <br/>}< br/> int YY = 0, Mm = 0, DD = 0, HH = 0, Mm = 0; <br/> If (secondsdble> = (uint) ymdhms. yearsc) // year <br/>{< br/> while (secondsdble> 0) <br/>{< br/> secondsdble-= (uint) ymdhms. yearsc; <br/> YY ++; <br/>}< br/> secondsdble + = (uint) ymdhms. yearsc; <br/> YY --; <br/>}< br/> If (secondsdble> = (uint) ymdhms. monsc) // month <br/>{< br/> while (secondsdble> 0) <br/>{< br/> secondsdble-= (uint) ymdhms. monsc; <br/> MM ++; <BR/>}< br/> secondsdble + = (uint) ymdhms. monsc; <br/> MM --; <br/>}< br/> If (secondsdble> = (uint) ymdhms. daysc) // day <br/>{< br/> while (secondsdble> 0) <br/>{< br/> secondsdble-= (uint) ymdhms. daysc; <br/> dd ++; <br/>}< br/> secondsdble + = (uint) ymdhms. daysc; <br/> dd --; <br/>}< br/> If (secondsdble> = (uint) ymdhms. housc) // <br/>{< br/> while (secondsdble> 0) <br/>{< br/> secondsdble-= (Uint) ymdhms. housc; <br/> Hh ++; <br/>}< br/> secondsdble + = (uint) ymdhms. housc; <br/> hh --; <br/>}< br/> If (secondsdble> = (uint) ymdhms. minsc) // <br/>{< br/> while (secondsdble> 0) <br/>{< br/> secondsdble-= (uint) ymdhms. minsc; <br/> MM ++; <br/>}< br/> secondsdble + = (uint) ymdhms. minsc; <br/> MM --; <br/>}< br/> If (yy! = 0) <br/> returnstr + = yy. tostring () + "year"; <br/> If (Mm! = 0) <br/> returnstr + = mm. tostring () + "month"; <br/> If (DD! = 0) <br/> returnstr + = dd. tostring () + "day"; <br/> If (hh! = 0) <br/> returnstr + = HH. tostring () + "Hour"; <br/> If (Mm! = 0) <br/> returnstr + = mm. tostring () + "points"; <br/> If (secondsdble <10) <br/> {<br/> returnstr + = "0" + timecount. remainonefigureafterdot (secondsdble) + "second"; <br/>}< br/> else <br/>{< br/> returnstr + = timecount. remainonefigureafterdot (secondsdble) + "second"; <br/>}< br/> return returnstr; <br/>}</P> <p>