python 获取昨天、今天、前天日期

获取查询 参数

def getFidByDate(fid): yesterDate = getDatetimeYesterday() params="from="+yesterDate +"&to="+yesterDate +"&fid="+str(fid) url=monitorUrl+params u=urllib2.urlopen(url) jsonData=json.loads(u.read().decode('utf-8')) return jsonData["result"]

得到今天日期

def getDatetimeToday(): t = date.today() #date类型 dt = datetime.strptime(str(t),'%Y-%m-%d') #date转str再转datetime return dt

得到昨天日期

def getDatetimeYesterday(): today = getDatetimeToday() # datetime类型当前日期 yesterday = today + timedelta(days=-1) # 减去一天 return str(yesterday).split()[0]

得到前天日期

def getDatetimeQianTian(): today = getDatetimeToday() # datetime类型当前日期 qt = today + timedelta(days=-2) # 减去一天 return str(qt).split()[0]

Filename : test.py

author by : www.runoob.com

引入 datetime 模块

import datetime def getYesterday(): today=datetime.date.today() oneday=datetime.timedelta(days=1) yesterday=today-oneday return yesterday

输出

print(getYesterday())

日期和字符串互转

把datetime转成字符串

def datetime_toString(dt): return dt.strftime("%Y-%m-%d-%H")

把字符串转成datetime

def string_toDatetime(string): return datetime.strptime(string, "%Y-%m-%d-%H")

把字符串转成时间戳形式

def string_toTimestamp(strTime): return time.mktime(string_toDatetime(strTime).timetuple())

把时间戳转成字符串形式

def timestamp_toString(stamp): return time.strftime("%Y-%m-%d-%H", tiem.localtime(stamp))

把datetime类型转外时间戳形式

def datetime_toTimestamp(dateTim): return time.mktime(dateTim.timetuple())