python中的時間戳和格式化之間的轉換

 

import time

#把格式化時間轉換成時間戳

def str_to_timestamp(str_time=None, format='%Y-%m-%d %H:%M:%S'):
    if str_time:
        time_tuple = time.strptime(str_time, format)  # 把格式化好的時間轉換成元祖
        result = time.mktime(time_tuple)  # 把時間元祖轉換成時間戳
        return int(result)
    return int(time.time())


print(str_to_timestamp('2019-04-27 07:01:46'))
print(str_to_timestamp()) #1556349904


# 把時間戳轉換成格式化

def timestamp_to_str(timestamp=None, format='%Y-%m-%d %H:%M:%S'):
    if timestamp:
        time_tuple = time.localtime(timestamp)  # 把時間戳轉換成時間元祖
        result = time.strftime(format, time_tuple)  # 把時間元祖轉換成格式化好的時間
        return result
    else:
        return time.strptime(format)

print(timestamp_to_str(1556348505)) #2019-04-27 15:01:45