示例代码：“`pythonfrom datetime import datetimefrom dateutil.relativedelta import relativedelta 假设有两个日期字符串 date_string1 = “20200101” date_string2 = “20231001”将字符串转换为日期对象 date1 = datetime.strptime date2 = datetime.strptime 计...
date_str="2022-03-15"date=datetime.datetime.strptime(date_str,"%Y-%m-%d")print(date) 1. 2. 3. 在上面的代码中,首先定义了一个字符串date_str,它表示日期"2022年3月15日"。然后使用datetime.strptime()函数将字符串转换为日期格式,其中%Y-%m-%d表示日期的格式为"年-月-日"。最后打印输出转换后的...
from datetimeimportdatetime date_string="25 December, 2022"print("date_string =",date_string)# usestrptime()to create date object date_object=datetime.strptime(date_string,"%d %B, %Y")print("date_object =",date_object) 二、使用datetime库计算某月最后一天 假设给定年和月份,这里用的计算逻辑方...
importdatetimedefconvert_string_to_date(date_string):date_object=datetime.datetime.strptime(date_string,"%Y-%m-%d")formatted_date=date_object.strftime("%B %d, %Y")returnformatted_date date_string="2022-01-01"converted_date=convert_string_to_date(date_string)print(converted_date) 1. 2. 3. ...
Example 1: datetime to string using strftime() The program below converts adatetimeobject containingcurrent date and timeto different string formats. fromdatetimeimportdatetime now = datetime.now()# current date and timeyear = now.strftime("%Y")print("year:", year) month = now.strftime("%m"...
f.write(string) 将一个字符串写入文件,如果写入结束,必须在字符串后面加上"\n",然后f.close()关闭文件 四、文件中的内容定位f.read() 读取之后,文件指针到达文件的末尾,如果再来一次f.read()将会发现读取的是空内容,如果想再次读取全部内容,必须将定位指针移动到文件开始: f.seek(0) 这个函数的格式如下(...
Python provides a straightforward way to achieve this using the strftime method. from datetime import datetime # Get current date and time current_datetime = datetime.now() # Convert to string with milliseconds formatted_datetime = current_datetime.strftime("%Y-%m-%d %H:%M:%S.%f")[:-3] ...
python-->date、datetime、string相互转换 Python--常用时间类型格式之间的转换 importdatetimeimporttime# 1.string转datetime>>>str='2012-11-19'>>>date_time = datetime.datetime.strptime(str,'%Y-%m-%d')>>>date_time result: datetime.datetime(2012,11,19,0,0)# 2.datetime转string>>>date_time....
Converting a string in a specific format to a datetime object from datetime import datetime # Example with the standard date and time format date_str = '2023-02-28 14:30:00' date_format = '%Y-%m-%d %H:%M:%S' date_obj = datetime.strptime(date_str, date_format) print(date_obj) # ...
date_time datetime.datetime(2012,11,19,0,0) datetime转string date_time.strftime('%Y-%m-%d') '2012-11-19' datetime转时间戳 time_time = time.mktime(date_time.timetuple()) time_time 1353254400.0 时间戳转string time.strftime('%Y-%m-%d',time.localtime(time_time)) ...