1、日期格式化
def paserTime(timestamp):

t = time.time()
f=time.localtime(timestamp/1000)
print (t)                       #原始时间数据
# print (int(t))                  #秒级时间戳
print (int(round(t * 1000)))    #毫秒级时间戳

#nowTime = lambda: int(round(t * 1000))

# print(nowTime()); # 毫秒级时间戳，基于lambda

nowTime = lambda:timestamp
str=time.strftime('%Y-%m-%d %H:%M:%S',f)
print(str)  # 日期格式化

return str

2、当前时间
def nowTime():

t = time.time()
f = time.localtime(int(t))
# print(t)
str = time.strftime('%Y-%m-%d %H:%M:%S', f)
print(str)  # 日期格式化
return str

3、时间戳转字符
def long2Str(longTime):

f = time.localtime(int(longTime))
# print(t)
str = time.strftime('%Y-%m-%d %H:%M:%S', f)
print(str)  # 日期格式化
return str

4、字符串转时间
def str2time(str):

date_time = datetime.datetime.strptime(str, '%Y-%m-%d %H:%M:%S')
# print(date_time)
return date_time

4、字符串转时间戳
def str2timestamp(str):

timstamp=time.mktime(time.strptime(str, '%Y-%m-%d %H:%M:%S'))
# print(timstamp)
return timstamp