[时间专题][Python]time的使用

Myth丶恋晨 2023-05-29 03:41 58阅读 0赞

## time常用方法 ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI3Njk1NjU5_size_16_color_FFFFFF_t_70]

## 时间元组 ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI3Njk1NjU5_size_16_color_FFFFFF_t_70 1]

## 时间格式 ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI3Njk1NjU5_size_16_color_FFFFFF_t_70 2]

## 案例 ##

import datetime
    import time
    """ 1.将字符串的时间"2019-11-10 23:40:00"转换为时间戳和时间元组 """
    time_str = "2019-11-10 23:40:00"
    time_tuple = time.strptime(time_str,"%Y-%m-%d %H:%M:%S")
    print(time_tuple)
    time_stramp = time.mktime(time_tuple)
    print(time_stramp)
    
    """ 2.字符串格式更改。如提time = "2019-11-10 23:40:00",想改为 time= "2019/11/10 23:40:00" """
    time_str2 = "2019-11-10 23:40:00"
    time_tuple2 = time.strptime(time_str2,"%Y-%m-%d %H:%M:%S")
    time_fmt = time.strftime("%Y/%m/%d %H:%M:%S",time_tuple2)
    print(time_fmt)
    
    """ 3.获取当前时间戳转换为指定格式日期 """
    ct_time_stramp = time.time()
    ct_time_tuple = time.localtime(ct_time_stramp)
    print(ct_time_tuple)
    ct_time_fmt = time.strftime("%Y-%m-%d %H:%M:%S",ct_time_tuple)
    print(ct_time_fmt)
    
    """ 4.获得三天前的时间 """
    timeStamp = int(time.time())
    dateArray = datetime.datetime.utcfromtimestamp(timeStamp)
    threeDayAgo = dateArray - datetime.timedelta(days = 3)
    print(threeDayAgo)

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI3Njk1NjU5_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20191103210234255.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI3Njk1NjU5,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI3Njk1NjU5_size_16_color_FFFFFF_t_70 1]: https://img-blog.csdnimg.cn/20191103174551854.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI3Njk1NjU5,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI3Njk1NjU5_size_16_color_FFFFFF_t_70 2]: https://img-blog.csdnimg.cn/20191103174628440.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzI3Njk1NjU5,size_16,color_FFFFFF,t_70