Python将Long类型时间戳转为日期

Python中，常用的三种表达方式时间：

时间戳（timestamp） float类型 1019948462.2750368

格式化的时间字符串（format_string）str类型 2002-04-28 07:01:02

结构化时间（struct_time）一般来说 他是中间件，我们转换时间基本都经过他

time.struct_time(tm_year=2002, tm_mon=4, tm_mday=28, tm_hour=7, tm_min=1, tm_sec=2, tm_wday=6, tm_yday=118, tm_isdst=0)

import time
longTime = 1.0199484622750369E12
# val = val*100
longTime = longTime / 1000 #float 时间戳格式(1019948462.2750368)
t = time.localtime(longTime)
#  输出time.struct_time(tm_year=2002, tm_mon=4, tm_mday=28, tm_hour=7, tm_min=1, tm_sec=2, tm_wday=6, tm_yday=118, tm_isdst=0)
week = time.strftime("%A", t)  # 输出Sunday 星期几
strTime = time.strftime("%Y-%m-%d %H:%M:%S", t)  #输出 2002-04-28 07:01:02

strTime = "2002-04-28 07:01:02"
struct_time = time.strptime(strTime, '%Y-%m-%d %H:%M:%S')
#输出 time.struct_time(tm_year=2002, tm_mon=4, tm_mday=28, tm_hour=7, tm_min=1, tm_sec=2,tm_wday=6, tm_yday=118, tm_isdst=-1)

import java.time.Instant;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.time.format.DateTimeFormatter;

public class ParseDate {

   public static String convertTimeToString(Long time) {
      DateTimeFormatter ftf = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
      return ftf.format(LocalDateTime.ofInstant(Instant.ofEpochMilli(time), ZoneId.systemDefault()));
   }
   public static void main(String[] args) {
      double val = 1.0199484622750369E12;
      long value = (long) (val);
      System.out.println(value);// 输出1019948462275
      String str = convertTimeToString(value);// Long类型转换
      System.out.println(str);// 2002-04-28 07:01:02
   }
}