Python 时间对象 时间字符串 时间戳 相关转换 加减 时间转字符串 时间戳转时间对象

import datetime

# 时间对象 时间字符串 时间戳 相关转换

# 1. datetime to str
import time

print("1.时间对象转字符串1:", datetime.datetime.now().isoformat(sep=" "))
print("1.时间对象转字符串2:", f"{datetime.datetime.now()}")
print("1.时间对象转字符串3:", datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S'))
print("1.时间对象转字符串4:", datetime.datetime.now().date().strftime('%Y-%m-%d %H:%M:%S'))
print("1.时间对象转字符串5:", datetime.datetime.now().time().strftime('%H:%M:%S'))
print("1.时间对象转字符串6:", datetime.datetime(2024, 4, 2, 12, 0).strftime('%Y-%m-%d %H:%M:%S'))
"""
输出:
1.时间对象转字符串1: 2024-04-02 14:34:12.505526
1.时间对象转字符串2: 2024-04-02 14:34:12.505526
1.时间对象转字符串3: 2024-04-02 14:34:12
1.时间对象转字符串4: 2024-04-02 00:00:00
1.时间对象转字符串5: 14:34:12
1.时间对象转字符串6: 2024-04-02 12:00:00
"""

# 2. str to datetime
print("2.字符串转时间对象(整天)1: ", datetime.datetime.strptime("2024-04-02", "%Y-%m-%d"))
print(&