Python使用datetime库实现对时间的获取方法

from datetime import datetime

# 获取当前日期和时间
now = datetime.now()

# 读取年、月、日和时间
year = now.year
month = now.month
day = now.day
hour = now.hour
minute = now.minute
second = now.second

# 打印结果
print("当前日期：{}年{}月{}日".format(year, month, day))
print("当前时间：{}:{}:{}".format(hour, minute, second))

from datetime import datetime, date, time

now = datetime.now()
print("当前日期和时间:", now)

current_time = datetime.now().time()
print("当前时间:", current_time)

# 创建日期对象
specified_date = date(2023, 5, 25)
print("指定日期:", specified_date)

# 创建时间对象
specified_time = time(10, 30, 0)
print("指定时间:", specified_time)

# 创建日期和时间对象
specified_datetime = datetime(2023, 5, 25, 10, 30, 0)
print("指定日期和时间:", specified_datetime)

formatted_date = today.strftime("%Y-%m-%d")
print("格式化后的日期:", formatted_date)

formatted_time = current_time.strftime("%H:%M:%S")
print("格式化后的时间:", formatted_time)

formatted_datetime = specified_datetime.strftime("%Y-%m-%d %H:%M:%S")
print("格式化后的日期和时间:", formatted_datetime)