「Python 数据处理基础」日期、时间数据常用处理方法

╰+哭是因爲堅強的太久メ 2022-10-29 07:35 157阅读 0赞

### 文章目录 ###

*  内容介绍
 *  Datetime 操作
 *  Time 操作

# 内容介绍 #

将日常工作中遇到的处理时间、日期的内容汇总到这里，并且长期更新。

import time, datetime

# Datetime 操作 #

**datetime 处理当前日期、时间、转换**

datetime_now = datetime.datetime.now()  
    print(type(datetime_now),datetime_now)
    
    date_date = datetime_now .date() 
    print(type(date_date),date_date) 
    
    datetime_str = datetime.datetime.strftime(datetime_now,"%Y-%m-%d %H:%M:%S")
    print(type(datetime_str),datetime_str) 
    
    datetime_now = datetime.datetime.strptime(datetime_str,'%Y-%m-%d %H:%M:%S')
    print(type(datetime_now),datetime_now) 
    
    date_date = datetime.datetime.strptime(datetime_str,'%Y-%m-%d %H:%M:%S').date()
    print(type(date_date),date_date)

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**datetime 日期类型的加减操作**

today = datetime.datetime.today()
    today = datetime.datetime.today().date()
    yestoday = today + datetime.timedelta(days=-1)
    tomorrow = today + datetime.timedelta(days=1)
    print(today) 
    print(yestoday)
    print(tomorrow)

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzIwMjg4MzI3_size_16_color_FFFFFF_t_70 1]

# Time 操作 #

**time 当前日期数据格式化**

# 使用time
    timeStamp = time.time()
    timeArray = time.localtime(timeStamp)
    otherStyleTime = time.strftime("%Y-%m-%d %H:%M:%S", timeArray)
    print(otherStyleTime) 
    
    # 使用datetime
    timeStamp = int(timeStamp)
    dateArray = datetime.datetime.fromtimestamp(timeStamp)
    otherStyleTime = dateArray.strftime("%Y-%m-%d %H:%M:%S")
    print(otherStyleTime) 
    
    # 使用datetime，指定utc时间，相差8小时
    timeStamp = int(timeStamp)
    dateArray = datetime.datetime.utcfromtimestamp(timeStamp)
    otherStyleTime = dateArray.strftime("%Y-%m-%d %H:%M:%S")
    print(otherStyleTime)

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