zoukankan      html  css  js  c++  java
  • 标准库模块中的time模块





     1 # Author: Sure Feng
     2 
     3 '''
     4 前言:
     5 开始学习模块~
     6 模块划分为三类:标准库模块、自定义模块、第三方模块
     7 
     8 本次目标:
     9 学习标准库模块中的time模块
    10 
    11 准备知识:
    12 时间格式分三类:
    13 struct_time(时间元组)
    14 Fomat string(日期字符串)
    15 Timestamp(时间戳)
    16 '''
    17 import time
    18 # 可以通过 print(help(time)) 查阅time模块中内容,
    19 # 前提是要import time,否则报错,NameError: name 'hlep' is not defined
    20 
    21 # 分割线
    22 def d_line():
    23         print("==============================================")
    24 
    25 # sleep(seconds) ,程序滞后一段seconds
    26 s_time = input("how long would you sleep >>>")
    27 print("it's time to sleep...")
    28 time.sleep(int(s_time))
    29 
    30 # time() -> floating point number ,获取本地时间戳
    31 d_line()
    32 print("--获取当前时间戳--")
    33 n_time = time.time()
    34 print(n_time)
    35 
    36 # 第一类:输入时间戳
    37 print("--输入时间戳的转换--")
    38 # 时间戳(空时输本地)→ 对应的UTC时间元组
    39 # gmtime([seconds]) -> (tm_year, tm_mon, tm_mday, tm_hour, tm_min, tm_sec, tm_wday, tm_yday, tm_isdst)
    40 gmtime_time = time.gmtime(n_time)
    41 print("对应的UTC时间元组是:" , gmtime_time)
    42 
    43 # 时间戳(空时输本地)→ 对应的时间元组
    44 # localtime([seconds]) -> 时间元组
    45 local_time = time.localtime(n_time)
    46 print("对应的本地时间元组是:" , local_time)
    47 
    48 # 时间戳(空时输本地)→ 固定格式的字符串
    49 # ctime(seconds) -> string
    50 print("转为固定格式的字符串:", time.ctime(n_time))# Tue Oct  2 18:15:34 2018
    51 
    52 
    53 # 第二类:输入时间元组
    54 d_line()
    55 print("--输入时间元组的转换--")
    56 # 时间元组(必须输入)→ 时间戳
    57 # mktime(tuple) -> floating point number
    58 print("对应UTC时间元组的时间戳:", time.mktime(gmtime_time))
    59 print("对应本地时间元组的时间戳:", time.mktime(local_time))
    60 
    61 # 时间元组(空时输本地)→ 固定格式的字符串
    62 # asctime([tuple]) -> string
    63 print("转为固定格式的字符串:", time.asctime(local_time))# Tue Oct  2 18:15:34 2018
    64 
    65 # 时间元组(空时输本地)→ 自定义格式的字符串
    66 # strftime(format[, tuple]) -> string
    67 str_time = time.strftime("%Y-%m-%d ~.~ %S:%M:%H",)
    68 print("转为自定义格式的字符串:", str_time)
    69 '''
    70         %Y  Year with century as a decimal number.
    71         %m  Month as a decimal number [01,12].
    72         %d  Day of the month as a decimal number [01,31].
    73         %H  Hour (24-hour clock) as a decimal number [00,23].
    74         %M  Minute as a decimal number [00,59].
    75         %S  Second as a decimal number [00,61].
    76         %z  Time zone offset from UTC.
    77         %a  Locale's abbreviated weekday name.
    78         %A  Locale's full weekday name.
    79         %b  Locale's abbreviated month name.
    80         %B  Locale's full month name.
    81         %c  Locale's appropriate date and time representation.
    82         %I  Hour (12-hour clock) as a decimal number [01,12].
    83         %p  Locale's equivalent of either AM or PM.
    84 '''
    85 
    86 
    87 # 第三类:输入字符串形式
    88 d_line()
    89 print("--输入字符串的转换--")
    90 # 字符串(空时输本地)→按自定义格式→ 时间元组
    91 # strptime(string, format) -> struct_time
    92 print(time.strptime(str_time,"%Y-%m-%d ~.~ %S:%M:%H" ))
    93 print(time.strptime("2016/05/12","%Y/%H/%m"))
    94 
    95 
    96 d_line()
    97 print(time.altzone) #返回UTC(协调世界时)与本地夏令时的时间差 --》-32400
    98 print(time.timezone) #返回UTC(协调世界时)与本地时间差 --》-28800
    View Code
    
    
    
     
    how long would you sleep >>>3
    it's time to sleep...
    ==============================================
    --获取当前时间戳--
    1538537928.3964212
    --输入时间戳的转换--
    对应的UTC时间元组是: time.struct_time(tm_year=2018, tm_mon=10, tm_mday=3, tm_hour=3, tm_min=38, tm_sec=48, tm_wday=2, tm_yday=276, tm_isdst=0)
    对应的本地时间元组是: time.struct_time(tm_year=2018, tm_mon=10, tm_mday=3, tm_hour=11, tm_min=38, tm_sec=48, tm_wday=2, tm_yday=276, tm_isdst=0)
    转为固定格式的字符串: Wed Oct  3 11:38:48 2018
    ==============================================
    --输入时间元组的转换--
    对应UTC时间元组的时间戳: 1538509128.0
    对应本地时间元组的时间戳: 1538537928.0
    转为固定格式的字符串: Wed Oct  3 11:38:48 2018
    转为自定义格式的字符串: 2018-10-03 ~.~ 48:38:11
    ==============================================
    --输入字符串的转换--
    time.struct_time(tm_year=2018, tm_mon=10, tm_mday=3, tm_hour=11, tm_min=38, tm_sec=48, tm_wday=2, tm_yday=276, tm_isdst=-1)
    time.struct_time(tm_year=2016, tm_mon=12, tm_mday=1, tm_hour=5, tm_min=0, tm_sec=0, tm_wday=3, tm_yday=336, tm_isdst=-1)
    ==============================================
    -32400
    -28800
  • 相关阅读:
    P3478 [POI2008]STA-Station
    P2015 二叉苹果树
    P2014 选课 (树型背包模版)
    求树的每个子树的重心
    求树的直径
    Javascript--防抖与节流
    JavaScript中call和apply的区别
    解决谷歌浏览器“此Flash Player与您的地区不相容,请重新安装Flash”问题(最新版)
    matlab实验代码(总)
    表达式树
  • 原文地址:https://www.cnblogs.com/sure-feng/p/9739470.html
Copyright © 2011-2022 走看看