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之前有个Q上好友没事问我，怎么自己写Unix时间戳转日期时间？于是我就顺手写了个C#版本给他！最近想起来，就萌发多写几个语言的版本分享，权当练习思路外加熟悉另外两种语言。
先说转换步骤
Python版本： # -*- coding: UTF-8 -*- from datetime import datetime, tzinfo, timedelta import pytz class DateHelper: def unixTimestmpToDate(self,timestamp): #计算年 (remainSeconds,year) = self.__get_year(timestamp) (remainSeconds,month) = self.__get_month(remainSeconds,year) (remainSeconds,day) = self.__get_day(remainSeconds) (remainSeconds,hour) = self.__get_hour(remainSeconds) (remainSeconds,minute) = self.__get_minute(remainSeconds) result = datetime(year, month, day, hour, minute, remainSeconds, 0, UTC(8)) print result.strftime('%Y-%m-%d %H:%M:%S',) def __get_minute(self,timestamp): """ 计算分钟 """ min = timestamp / 60 return (timestamp - min * 60, min) def __get_hour(self,timestamp): """ 计算小时 """ hour = timestamp / (60 * 60) return (timestamp - hour * 60 * 60, hour) def __get_day(self,timestamp): """ 计算天 """ #每天的秒数 daySeconds = 24 * 60 * 60 day = timestamp / daySeconds return (timestamp - day * daySeconds, day + 1) def __get_month(self, timestamp, year): """ 计算月份 """ #每天的秒数 daySeconds = 24 * 60 * 60 #每月的总秒数 monthDays = [31 * daySeconds, 28 * daySeconds, 31 * daySeconds, 30 * daySeconds, 31 * daySeconds, 30 * daySeconds, 31 * daySeconds, 31 * daySeconds, 30 * daySeconds, 31 * daySeconds, 30 * daySeconds, 31 * daySeconds] if self.__is_leap_year(year): monthDays[1] = 29 * daySeconds totalSeconds = 0 month = 0 for second in monthDays: month +=1 if second + totalSeconds > timestamp: break totalSeconds += second return (timestamp - totalSeconds, month) def __get_year(self,timestamp): """ 计算年份 """ year = 1969 totalSeconds = 0 while True: year +=1 second = self.__get_year_seconds(year) #年份总秒数大于时间戳 if totalSeconds + second > timestamp: break totalSeconds += second return (timestamp - totalSeconds,year) def __get_year_seconds(self,year): ''' 得到每一年的总秒数 ''' isLeapYear = self.__is_leap_year(year) if isLeapYear: return 366 * 24 * 60 * 60 else: return 365 * 24 * 60 * 60 def __is_leap_year(self,year): ''' 判断是否闰年 ''' if year % 4 == 0 and year % 100 != 0: return True elif year % 400 == 0: return True else: return False class UTC(tzinfo): """UTC 时区创建""" def __init__(self,offset=0): self._offset = offset def utcoffset(self, dt): return timedelta(hours=self._offset) def tzname(self, dt): return "UTC +%s" % self._offset def dst(self, dt): return timedelta(hours=self._offset) if __name__ == "__main__": datehelper = DateHelper() datehelper.unixTimestmpToDate(1483200000) C#版本： class DateHelper { /// <summary> /// unix时间戳转时间 /// </summary> /// <param name="timestamp">时间戳</param> /// <returns></returns> public static DateTime UixTimestmpToDate(int timestamp) { int remainSeconds; int year = GetYear(timestamp, out remainSeconds); int seconds = remainSeconds; int month = GetMonth(seconds, year, out remainSeconds); // seconds = remainSeconds; int day = GetDay(remainSeconds, out remainSeconds); int hour = GetHours(remainSeconds, out remainSeconds); int minute = GetMinute(remainSeconds, out remainSeconds); return new DateTime(year, month, day, hour, minute, remainSeconds); } /// <summary> /// 计算分钟 /// </summary> /// <param name="timestamp"></param> /// <param name="remainSeconds">剩余秒数</param> /// <returns></returns> private static int GetMinute(int timestamp, out int remainSeconds) { var minute = timestamp / 60; remainSeconds = timestamp - minute * 60; return minute; } /// <summary> /// 计算小时 /// </summary> /// <param name="timestamp"></param> /// <param name="remainSeconds"></param> /// <returns></returns> private static int GetHours(int timestamp, out int remainSeconds) { var hour = timestamp / (60 * 60); remainSeconds = timestamp - hour * 60 * 60; return hour; } /// <summary> /// 计算日 /// </summary> /// <param name="timestamp"></param> /// <param name="remainSeconds"></param> /// <returns></returns> private static int GetDay(int timestamp, out int remainSeconds) { var daySeconds = 24 * 60 * 60; var day = timestamp / daySeconds; remainSeconds = timestamp - day * daySeconds; return day + 1; } /// <summary> /// 计算月 /// </summary> /// <param name="timestamp"></param> /// <param name="year"></param> /// <param name="remainSeconds"></param> /// <returns></returns> private static int GetMonth(int timestamp, int year, out int remainSeconds) { // 每天的秒数 var daySeconds = 24 * 60 * 60; //每月的总秒数 var monthDays = new int[] { 31 * daySeconds, 28 * daySeconds, 31 * daySeconds, 30 * daySeconds, 31 * daySeconds, 30 * daySeconds, 31 * daySeconds, 31 * daySeconds, 30 * daySeconds, 31 * daySeconds, 30 * daySeconds, 31 * daySeconds }; if (IsLeepYear(year)) monthDays[1] = 29 * daySeconds; var totalSeconds = 0; var month = 0; foreach (var second in monthDays) { month += 1; if (second + totalSeconds > timestamp) break; totalSeconds += second; } remainSeconds = timestamp - totalSeconds; return month; } /// <summary> /// 计算年 /// </summary> /// <param name="timestamp"></param> /// <param name="remainSeconds"></param> /// <returns></returns> private static int GetYear(int timestamp, out int remainSeconds) { int year = 1969, totalSeconds = 0; while (true) { year += 1; int second = GetYearSeconds(year); //年份总秒数大于时间戳 if (totalSeconds + second > timestamp) break; totalSeconds += second; } remainSeconds = timestamp - totalSeconds; return year; } /// <summary> /// 得到每一年的总秒数 /// </summary> /// <param name="year"></param> /// <returns></returns> private static int GetYearSeconds(int year) { if (IsLeepYear(year)) return 366 * 24 * 60 * 60; else return 365 * 24 * 60 * 60; } /// <summary> /// 判断闰年 /// </summary> /// <param name="year"></param> /// <returns></returns> private static bool IsLeepYear(int year) { if (year % 4 == 0 && year % 100 != 0) return true; else if (year % 400 == 0) return true; else return false; }
/** * Created by chong on 2017/7/4. */ public class DateHelper { /** * unix时间戳转时间 * * @param timestamp 时间戳 * @return * @throws ParseException */ public static Date uixTimestmpToDate(int timestamp) throws ParseException { int[] year = GetYear(timestamp); int[] month = GetMonth(year[1], year[0]); int[] day = GetDay(month[1]); int[] hour = GetHours(day[1]); int[] minute = GetMinute(hour[1]); String strDate = String.format("%d-%d-%d %d:%d:%d", year[0], month[0], day[0], hour[0], minute[0], minute[1]); SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); //这次没有处理时区，所以直接输出的是UTC时间 Date strtodate = formatter.parse(strDate); return strtodate; } /** * 计算分钟 * * @param timestamp * @return */ private static int[] GetMinute(int timestamp) { int minute = timestamp / 60; int remainSeconds = timestamp - minute * 60; return new int[]{minute, remainSeconds}; } /** * 计算小时 * * @param timestamp * @return */ private static int[] GetHours(int timestamp) { int hour = timestamp / (60 * 60); int remainSeconds = timestamp - hour * 60 * 60; return new int[]{hour, remainSeconds}; } /** * 计算日 * * @param timestamp * @return */ private static int[] GetDay(int timestamp) { int daySeconds = 24 * 60 * 60; int day = timestamp / daySeconds; int remainSeconds = timestamp - day * daySeconds; return new int[]{day + 1, remainSeconds}; } /** * 计算月 * * @param timestamp * @param year * @return */ private static int[] GetMonth(int timestamp, int year) { // 每天的秒数 int daySeconds = 24 * 60 * 60; //每月的总秒数 int[] monthDays = new int[]{31 * daySeconds, 28 * daySeconds, 31 * daySeconds, 30 * daySeconds, 31 * daySeconds, 30 * daySeconds, 31 * daySeconds, 31 * daySeconds, 30 * daySeconds, 31 * daySeconds, 30 * daySeconds, 31 * daySeconds}; if (IsLeepYear(year)) monthDays[1] = 29 * daySeconds; int totalSeconds = 0, month = 0; for (int second : monthDays) { month += 1; if (second + totalSeconds > timestamp) break; totalSeconds += second; } int remainSeconds = timestamp - totalSeconds; return new int[]{month, remainSeconds}; } /** * 计算年 * * @param timestamp * @return */ private static int[] GetYear(int timestamp) { int year = 1969, totalSeconds = 0; while (true) { year += 1; int second = GetYearSeconds(year); //年份总秒数大于时间戳 if (totalSeconds + second > timestamp) break; totalSeconds += second; } int remainSeconds = timestamp - totalSeconds; return new int[]{year, remainSeconds}; } /** * 得到每一年的总秒数 * * @param year * @return */ private static int GetYearSeconds(int year) { if (IsLeepYear(year)) return 366 * 24 * 60 * 60; else return 365 * 24 * 60 * 60; } /** * 判断闰年 * * @param year * @return */ private static boolean IsLeepYear(int year) { if (year % 4 == 0 && year % 100 != 0) return true; else if (year % 400 == 0) return true; else return false; } }
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