Python 如何传递值和使用此函数

嗨，我有以下代码

import csv
import math

EASTING_BASE = 500
NORTHING_BASE = 500

def main():
    global NORTHING_BASE
    global EASTING_BASE

     for i, a in getStationCoords():
        statione = int(i)
        stationn = int(a)
        print statione,stationn

    stationEasting = int(getStationCoords()[0][0])
    stationNorthing = int(getStationCoords()[0][1])

    for i in range(0, len(eastingList)):
        print "Co-ordinates (" + str(eastingList[i]) + "," + str(northingList[i]) + ")"
        print calculateDistance(NORTHING_BASE, EASTING_BASE, northingList[i], eastingList[i])
        print calculateBearing(NORTHING_BASE, EASTING_BASE, northingList[i], eastingList[i])


def getStationCoords():
    listStation = []
    a_reader = None
    a_reader     = open('data.csv', 'rU')
    a_csv_reader = csv.reader(a_reader)
    a_csv_reader.next()  
    for i in [row[-2:] for row in a_csv_reader]:
     listStation.append(i)
    a_reader.close()

    count = 0
    sum   = 0.0
    a_reader     = open('data.csv', 'rU')
    a_csv_reader = csv.reader(a_reader)

    #for row in a_csv_reader:
     #       if count != 0 and row[0] != '':
      #          sum = sum + float(row[0])
       #     count = count + 1


    #print 'Number of lines is:',count
    #print 'Sum is:',sum

    return listStation

def main2():

    global NORTHING_BASE
    global EASTING_BASE

    eastingList = []
    northingList = []

    def calculateDistance(northingOne, eastingOne, northingTwo, eastingTwo):
    # Determine differences in eastings and northings
    deltaEasting = eastingTwo - eastingOne
    deltaNorthing = northingTwo - northingOne

    # We don't need to worry about +/- as using pythag below
    distance = (deltaEasting **2 + deltaNorthing **2) **0.5

    # Return the value for distance
    return distance

def calculateBearing(northingOne, eastingOne, northingTwo, eastingTwo):
    diffEasting = eastingTwo - eastingOne
    diffNorthing = northingTwo - northingOne

    # Work out if in QI/II or QIII/IV
    if diffEasting >= 0:
        # This is in QI/II
        if diffNorthing >0:
            # This is in QI
            bearing = math.atan(diffEasting / diffNorthing)
        else:
            # This is in QII
            bearing = math.pi - math.atan(diffEasting / abs(diffNorthing))
    else:
        # This is in QIII/IV
        if diffNorthing >0:
            # This is in QIV
            bearing = 2 * math.pi - math.atan(abs(diffEasting) / diffNorthing)
        else:
            # This is in QIII
            bearing = math.pi + math.atan(abs(diffEasting) / abs(diffNorthing))

    # Return the value
    return bearing


main2()
main()

好的，我知道我必须在东距和北距列表中放置值。在下面我的第一个函数main（）生成以下内容

476050 7709929
473971 7707713
465676 7691097
515612 7702192 
516655 7704405
519788 7713255 
538466 7683341

我陷入困境的是如何将这些东距（左）和北距（右）值放入东距和北距列表中。有人能帮我一下吗？因为我完全不知道如何将他们列入main2（）中的东距和北距列表

通过调用easting和northing列表中的easting和northing值，我是否正确地实现了该函数

---

非常感谢您的帮助

注意：我假设

getstationwords（）

返回：

[['476050', '7709929'], ['473971', '7707713'], ['465676', '7691097'], ['515612', '7702192'], ['516655', '7704405'], ['519788', '7713255'], ['538466', '7683341']]

您可以使用：

---

无论在何处实现，这完全取决于您，因为您是编写代码的人：p.

那么，请澄清一下，您希望左侧的所有值都在一个单独的列表中吗？右边所有的都在一个单独的列表中吗？@Haidro是的，就是这样。我想将左侧的所有值放入eastlist=[]中，将右侧的所有值放入northlist=[]中，这可能吗？/我在哪里实现这一点？我添加了一个答案Thank you@Haidro这很完美我想我可能需要更早地将值拆分，但如果列表已经存在，那么zip是一个更好的方法。热爱你的工作和你的工作。Thanksim试图通过从列表中调用来实现这一点，但是如果我使用，它对字符串和int不起作用-有办法解决吗？例如，我可以从列表中的字符串中删除它们吗？@KristoferWright是否希望它们作为整数而不是字符串？是的，它们可以是列表中的整数而不是字符串吗？这可能吗

eastlist, northlist = [map(int, i) for i in zip(*getStationCoords())]
print eastlist
# [476050, 473971, 465676, 515612, 516655, 519788, 538466]
print northlist
# [7709929, 7707713, 7691097, 7702192, 7704405, 7713255, 7683341]