Python之time模块的时间戳,时间字符串格式化与转换方法(13位时间戳)

time.struct_time(tm_year=2017, tm_mon=10, tm_mday=1, tm_hour=14, tm_min=21, tm_sec=57, tm_wday=6, tm_yday=274, tm_isdst=0) 

import time

#生成当前时间的时间戳，只有一个参数即时间戳的位数，默认为10位，输入位数即生成相应位数的时间戳，比如可以生成常用的13位时间戳
def now_to_timestamp(digits = 10):
 time_stamp = time.time()
 digits = 10 ** (digits -10)
 time_stamp = int(round(time_stamp*digits))
 return time_stamp

#将时间戳规范为10位时间戳
def timestamp_to_timestamp10(time_stamp):
 time_stamp = int (time_stamp* (10 ** (10-len(str(time_stamp)))))
 return time_stamp

#将当前时间转换为时间字符串，默认为2017-10-01 13:37:04格式
def now_to_date(format_string="%Y-%m-%d %H:%M:%S"):
 time_stamp = int(time.time())
 time_array = time.localtime(time_stamp)
 str_date = time.strftime(format_string, time_array)
 return str_date

#将10位时间戳转换为时间字符串，默认为2017-10-01 13:37:04格式
def timestamp_to_date(time_stamp, format_string="%Y-%m-%d %H:%M:%S"):
 time_array = time.localtime(time_stamp)
 str_date = time.strftime(format_string, time_array)
 return str_date

#将时间字符串转换为10位时间戳，时间字符串默认为2017-10-01 13:37:04格式
def date_to_timestamp(date, format_string="%Y-%m-%d %H:%M:%S"):
 time_array = time.strptime(date, format_string)
 time_stamp = int(time.mktime(time_array))
 return time_stamp

#不同时间格式字符串的转换
def date_style_transfomation(date, format_string1="%Y-%m-%d %H:%M:%S",format_string2="%Y-%m-%d %H-%M-%S"):
 time_array = time.strptime(date, format_string1)
 str_date = time.strftime(format_string2, time_array)
 return str_date

print(now_to_date())
print(timestamp_to_date(1506816572))
print(date_to_timestamp('2017-10-01 08:09:32'))
print(timestamp_to_timestamp10(1506816572546))
print(date_style_transfomation('2017-10-01 08:09:32'))

1506836224000
2017-10-01 13:37:04
2017-10-01 08:09:32
1506816572
1506816572
2017-10-01 08-09-32