我想循环遍历 startDayValStr
、endDayValStr
、startTimeValStr
、endTimeValStr
中的每个值并使用值作为 URL 字符串中的参数。我使用所有其他值作为我的 end
变量,即 06:00:00
是 startTimeValStr
值,07:00: 00
是一个 endTimeValStr
值。
如何正确构建循环以在 time_param
中使用这些变量?
我希望 time_param
看起来像这样 ?start=05-05-2019T06:00:00Z&end=05-05-2019T07:00:00Z
这是我当前的代码:
import pandas as pd
rng = pd.date_range(pd.Timestamp('2019-05-05' + ' ' + "'06:00:00'"),periods=25, freq='H')
dtSeries = pd.Series(rng.format())
ddf = dtSeries.to_frame(name='Date')
ddf['time'] = pd.to_datetime(ddf['Date'])
dateDF = ddf['dates'] = ddf['time'].dt.date
timeDF = ddf['dates'] = ddf['time'].dt.time
startDayVal= dateDF[::2]
endDayVal = dateDF[1::2]
startTimeVal= timeDF[::2]
endTimeVal = timeDF[1::2]
startDayValStr = (startDayVal.to_string())
endDayValStr =(endDayVal.to_string())
startTimeValStr = (startTimeVal.to_string())
endTimeValStr = (endTimeVal.to_string())
for startDate, endDate, startTime, endTime in zip (startDayValStr, endDayValStr, startTimeValStr, endTimeValStr):
time_param = '?start='+ startDate +'T'+startTime + 'Z' + '&end='+ endDate + endTime + 'Z'
print time_param
最佳答案
如果使用 Python 3.x
,请尝试 string.format
方法,用 date.strftime
:
rng = pd.date_range(pd.Timestamp('2019-05-05' + ' ' + "'06:00:00'"),
periods=25, freq='H')
for start, end in zip(rng[::2], rng[1::2]):
time_param = '?start={}&end={}'.format(start.strftime('%d-%m-%YT%H:%M:%SZ'),
end.strftime('%d-%m-%YT%H:%M:%SZ'))
print(time_param)
[输出]
?start=05-05-2019T06:00:00Z&end=05-05-2019T07:00:00Z
?start=05-05-2019T08:00:00Z&end=05-05-2019T09:00:00Z
?start=05-05-2019T10:00:00Z&end=05-05-2019T11:00:00Z
?start=05-05-2019T12:00:00Z&end=05-05-2019T13:00:00Z
?start=05-05-2019T14:00:00Z&end=05-05-2019T15:00:00Z
?start=05-05-2019T16:00:00Z&end=05-05-2019T17:00:00Z
?start=05-05-2019T18:00:00Z&end=05-05-2019T19:00:00Z
?start=05-05-2019T20:00:00Z&end=05-05-2019T21:00:00Z
?start=05-05-2019T22:00:00Z&end=05-05-2019T23:00:00Z
?start=06-05-2019T00:00:00Z&end=06-05-2019T01:00:00Z
?start=06-05-2019T02:00:00Z&end=06-05-2019T03:00:00Z
?start=06-05-2019T04:00:00Z&end=06-05-2019T05:00:00Z
关于python - 如何使用循环从 Pandas 数据框中获取值?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/56007553/