用法:datetime.timedelta(days=0, seconds=0, microseconds=0, milliseconds=0, minutes=0, hours=0, weeks=0) days:表示时间间隔的天数部分。 seconds:表示时间间隔的秒数部分,不包括天数部分。 microseconds:表示时间间隔的微秒数部分,不包括天数和秒数部分。参数单位的换算规则: 1毫秒会转换成1000微秒。 1分钟...
#> datetime.timedelta(days=37, seconds=9600) 1. 2. 3. 如果将两个 datetime 对象相减,就会得到表示该时间间隔的 timedelta 对象: dt1 = datetime.datetime(2002, 1, 31, 10, 10, 0) dt2 = datetime.datetime(2001, 1, 31, 10, 10, 0) dt1 - dt2 #> datetime.timedelta(days=365) 1. 2. 3...
to_datetime(df2['OFF_TIME']) df2["辅助列-天数"]=df2["OFF_TIME"].map(lambda x:self.which_day(x)) lst = df2["辅助列-天数"].tolist() # 连续数字 k_v = df2.set_index("辅助列-天数")["OFF_TIME"].to_dict() #辅助列-天数映射字典 df3=self.data_preprocess_dactory(lst,k_v,...
timestamp 转换为 datetime >>>fromdatetimeimportdatetime>>> t = 1490761200.0 >>>print(datetime.fromtimestamp(t))#本地时间转换2017-03-29 12:20:00 >>>print(datetime.utcfromtimestamp(t))#UTC时间转换2017-03-29 04:20:00 str转换为datetime >>>fromdatetimeimportdatetime>>> cday = datetime.strp...
在实际工作中,经常会用datetime库做日期时间处理操作。 对于每一张表,都会包含日期时间相关的字段,基于这些字段,便于我们从时间的维度来认识和分析业务,例如,按时间观察订单的变化;每日的UV和PV;每日的坏账率、通过率、件均额度等,以及按着周、月、季度或者年来观察一些关键指标。
time=str(temp[3]).strip('\n')output_file.write(temp[0]+','+name+','+'\n')else:continueend=datetime.datetime.now()print((end-begin).seconds)#单元测试代码 names=getAllName('我老公宝贝叫王宁,尊敬的王大力,CCHHKK旗舰店,尊敬的铁路客服人员李天,冯达辉')print(names)print(getFirstName('尊敬...
seconds=35# Initializing the second fieldminutes=45# Initializing the minutes fieldhours=21# Initializing the hours field Example: Creation of datetime Object In this example, I’ll illustrate how to initialize a datetime object. A datetime object has the year, month, and day parameters, and opt...
另外一点是,由于是基于Unix Timestamp,所以其所能表述的日期范围被限定在 1970 – 2038 之间,如果你写的代码需要处理在前面所述范围之外的日期,那可能需要考虑使用datetime模块更好。 获取当前时间和转化时间格式 time() 返回时间戳格式的时间 (相对于1.1 00:00:00以秒计算的偏移量)...
# seconds as returned by time.time() is used # since no attribute was passed lt = time.localtime() print("***STRUCT TIME OBJECT***") print(lt) print("\n***COMPLETE ATTRIBUTES***") # get a complete set of the object's attributes that starts with 'tm' ...
0 <= microsecond < 1000000. When arguments that are out of range are passed to the constructor, it raises a ValueError. Example: Create a time object To create a time object, import the time class from the datetime module. Pass arguments for hours, minutes, seconds, microseconds and tzin...