时间处理

取文件中的时间，改为时间戳，与当前时间对比

import time
import datetime

print datetime.datetime.now()

def compare_time(l_time,start_t,end_t):

    s_time = time.mktime(time.strptime(start_t,'%Y%m%d%H%M')) # get the seconds for specify date
    e_time = time.mktime(time.strptime(end_t,'%Y%m%d%H%M'))
    log_time = time.mktime(time.strptime(l_time,'%Y-%m-%d %H:%M:%S'))

    if (float(log_time) >= float(s_time)) and (float(log_time) <= float(e_time)):

        return True

    return False

def GetLine():
    fo = open("0220.txt", 'r+')
    lines = []
    str = []
    while 1:
        line = fo.readline()
        str = line[0:20]

        if not line:
            break
        pass
        lines.append(line)
        str.append( line[0:20])
    print lines
    print str
    return lines, str

二，设置一个时间区间如 500ms，匹配所有符合条件的记录并输出

from datetime import datetime, timedelta

def saveNum(str1):
    fow = open('rst.log', 'ab+')
    fow.write(str1 + '\n')
    fow.close()


def GetZoneTimeNums(timeStar=None,millTime=None):
    x = 0
    fo = open("0220.txt", 'r+')
    timeStarList = []
    OList = []

    for (num, value) in enumerate(fo):
        line = value
        print num, line
        timeLine = line[0:26]
        timeDate = datetime.strptime(timeLine, '%Y-%m-%d %H:%M:%S.%f')

        if not timeDate <= timeStar:
            str1 = str(timeStar) + '\t' + str(x)
            saveNum(str1)
            print '不符合的行',num, timeStar, timeDate
            print 'No'
            while True:
                x = 0
                if timeStar < timeDate:
                    #时间区间移动，直到覆盖现有时间点
                    timeStar =timeStar + timedelta(milliseconds=500)
                else:
                    break
                print 'x =1 timeStar add', timeDate, timeStar
            print 'timeStar', timeDate, timeStar
        if timeStar >= timeDate:
            x = x + 1
            #记录匹配过程
            OList.append(str(timeStar)+':'+str(timeDate)+':'+str(x))
            print timeStar, timeDate, x
            print 'YES'
            print timeStar, timeDate
            continue
    str1 = str(timeStar) + '\t' + str(x)
    saveNum(str1)

    fo.close()
    return OList


if __name__ == '__main__':
    #设置起点
    timeS = datetime.strptime('2017-02-20 23:12:22.511111', '%Y-%m-%d %H:%M:%S.%f')
    #传入起点和统计粒度
    lis = GetZoneTimeNums(timeS, 500)
    print lis