python學習：time、unixtime、string的轉換

1、String轉換成time類:

import time
endTimeStr = "2015-11-28 00:00:00"
formatStr = "%Y-%m-%d %H:%M:%S"
tmObject = time.strptime(startTimeStr, formatStr)

2、time轉換成String類:

timeStr = time.strftime("%Y/%m/%d %H:%M:%S", tmObject)

3、獲取unix_timestamp：
不能直接從string獲取timestamp，需要先轉換成time類或者datetime類。以轉成time類為例：

import time
endTimeStr = "2015-11-28 00:00:00"
formatStr = "%Y-%m-%d %H:%M:%S"
tmObject = time.strptime(startTimeStr, formatStr)
tmStamp = time.mktime(tmObject)

4、時間戳轉換成字符串, 類似mysql的from_unixtime操作:

import time
tmStamp = 1447315020
tmObject = time.localtime(timeStamp)
tmStr = time.strftime("%Y-%m-%d %H:%M:%S", tmObject)