python地铁查询系统_Python实现属于自己的公交地铁线路图

Python实现属于自己的公交地铁线路图，本文主要讲解的就是用Python计算公交线路图的功能，即输入起始点和结束点，即能够得出公交的线路。

先说下数据的来源，直接网上爬取，也可以直接略过此点，直接下载我的源码获取。

# coding=utf-8

import requests

from bs4 import BeautifulSoup

import time

def download_line(url, line_number):

headers = {

'Host': 'ditie.114huoche.com',

'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64; rv:43.0) Gecko/20100101 Firefox/43.0',

'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',

'Accept-Language': 'zh-CN,zh;q=0.8,en-US;q=0.5,en;q=0.3',

'Accept-Encoding': 'gzip, deflate',

'Connection': 'keep-alive',

'If-None-Match': 'W/"aa248d9ab9daa155024a37bbfb5ce775"',

'Cache-Control': 'max-age=0'

}

s = requests.session()

resp = s.get(url, headers=headers)

resp.encoding = 'gb2312'

if resp.status_code == 200:

print 'ok'

text = resp.text

soup = BeautifulSoup(text, 'html.parser')

with open('./line/' + str(line_number) + '.txt', 'w+') as f:

for row in soup.find_all('span', attrs={'class': 'yx_span'}):

if row.a is not None and len(row.a) > 0:

f.write(row.a.string.encode('utf-8') + 'n')

else:

print 'connect fail'

all_address = [

# ['https://ditie.114huoche.com/ShangHai/x_24/', '2'],

# ['https://ditie.114huoche.com/ShangHai/x_25/', '3'],

['https://ditie.114huoche.com/ShangHai/x_26/', '4w'],

['https://ditie.114huoche.com/ShangHai/x_27/', '4n'],

['https://ditie.114huoche.com/ShangHai/x_28/', '5'],

['https://ditie.114huoche.com/ShangHai/x_29/', '6'],

['https://ditie.114huoche.com/ShangHai/x_30/', '7'],

['https://ditie.114huoche.com/ShangHai/x_31/', '8'],

['https://ditie.114huoche.com/ShangHai/x_32/', '9'],

['https://ditie.114huoche.com/ShangHai/x_33/', '10zhu'],

['https://ditie.114huoche.com/ShangHai/x_34/', '10zhi'],

['https://ditie.114huoche.com/ShangHai/x_35/', '11zhu'],

['https://ditie.114huoche.com/ShangHai/x_36/', '11zhi'],

['https://ditie.114huoche.com/ShangHai/x_37/', 'cixuanfu'],

['https://ditie.114huoche.com/ShangHai/x_38/', '1'],

['https://ditie.114huoche.com/ShangHai/x_39/', '12'],

['https://ditie.114huoche.com/ShangHai/x_40/', '13'],

['https://ditie.114huoche.com/ShangHai/x_43/', '16']

]

for row in all_address:

print row

download_line(row[0], row[1])

time.sleep(10)

下面开始进行地铁线路的计算

先读取数据

def read_line(filename):

with open('d:/pythondemo/subline/download/line/' + filename) as f:

value = [[row.replace('n', ''), []] for row in f.readlines()]

return value

计算一个站点在一条线路中的个数，以及计算位置position

def __count(data, site):

number = 0

for row in data:

if row[0] == site:

number += 1

return number

def __index(data, site):

for index, row in enumerate(data):

if row[0] == site:

return index

else:

return -1

下面就是具体的实现模块，有待改善

def statistics_transfer(data):

'''

统计可以在哪一站换乘

那两条路线之间可以换乘

:param data:总的数据集合

:return:

'''

line_data = []

keys = data.keys()

for row in keys:

for r in keys:

if row != r:

for index, site in enumerate(data[row]):

if __count(data[r], site[0]) > 0:

data[row][index][1].append(r)

if line_data.count([row, r]) == 0:

line_data.append([row, r])

return data, line_data

def sub_line(data, line, start, end):

'''

截取对应的站点

:param data: 总的数据集合

:param line: 路线

:param start: 开始点

:param end: 结束点

:return:

'''

value = []

start_index = __index(data[line], start)

end_index = __index(data[line], end)

if start_index < end_index:

for i in range(start_index, end_index + 1):

value.append(data[line][i][0])

return value

else:

for i in range(end_index, start_index + 1):

value.append(data[line][i][0])

return [row for row in value[::-1]]

def find_line(data, site, line=[]):

'''

查找站点位于哪一条线路

:param data: 总的线路数据

:param site: 站点

:return:

'''

for row in data.keys():

if line.count(row) == 0:

if __count(data[row], site) > 0:

return row

return -1

def find_transfer(data, start, direction, line=[]):

'''

查找在开始点后哪一站可以换乘

:param data:线路上的站点

:param start:开始点

:param direction:换乘的方向

:param line:线路

:return:

'''

start_index = __index(data, start)

if direction == 1:

if start >= len(data):

return None

else:

for i in range(start_index + 1, len(data)):

if len(data[i][1]) > 0: # and len([row for row in data[i][1] if row in line]) == 0:

for row in data[i][1]:

if row not in line:

return data[i][0], row

return None

else:

return None

def find_all_start_line(line_data, start_line):

return [row[1] for row in line_data if row[0] == start_line]

def find_transfer_data(line_data, start_line, end_line):

'''

查找重开始线路到终点线路的所有的可能的情况

:param line_data:

:param start_line:

:param end_line:

:return:

'''

t = find_all_start_line(line_data, start_line)

all_date = [[start_line, r] for r in t]

length = len([r for r in all_date if r[-1] == end_line])

while length != len(all_date):

for i in range(len(all_date)):

if all_date[i][-1] != end_line:

t = find_all_start_line(line_data, all_date[i][-1])

i_v = all_date[i]

del all_date[i]

for r in t:

if i_v.count(r) == 0:

c = [r1 for r1 in i_v]

c.append(r)

all_date.append(c)

break

length = len([r for r in all_date if r[-1] == end_line])

return all_date

def sub_all_site_start_end(data, start, start_line, end_line):

'''

截取两条线路之间的站点

:param data:

:param start:

:param start_line:

:param end_line:

:return:

'''

value = []

index = __index(data[start_line], start)

for i in range(0, index)[::-1]:

if data[start_line][i][1].count(end_line) > 0:

value.append(sub_line(data, start_line, data[start_line][i][0], start)[::-1])

for i in range(index, len(data[start_line])):

if data[start_line][i][1].count(end_line) > 0:

value.append(sub_line(data, start_line, start, data[start_line][i][0]))

return value

def get_lines(data, lines, start, end):

'''

根据['1','2']获取到整条路线站点信息

:param lines:

:param start:

:param end:

:return:

'''

t = []

for index, r in enumerate(lines):

if index == 0:

start_tmp = start

continue

if len(t) == 0:

index_value = sub_all_site_start_end(data, start_tmp, lines[index - 1], lines[index])

for r1 in index_value:

lineData = LineData(lines[index - 1], r1, r1[0], r1[-1], None)

t.append(lineData)

else:

row_list = []

find_all_linedata(t, end, row_list)

for row in row_list:

index_value = sub_all_site_start_end(data, row.end, lines[index - 1], lines[index])

rowt = []

for rowr in index_value:

lineData = LineData(lines[index - 1], rowr, row.end, rowr[-1], None)

rowt.append(lineData)

row.next_d = rowt

if index == len(lines) - 1:

row_list = []

find_all_linedata(t, end, row_list)

for row in row_list:

rowt = sub_line(data, r, row.end, end)

lineData = LineData(lines[index], rowt, row.end, rowt[-1], None)

row.next_d = lineData

return t

def find_all_linedata(linedata, end, list):

for row in linedata:

if row.next_d is None:

if row.end != end:

list.append(row)

else:

find_all_linedata(row.next_d, end, list)

def calculator_line(data, line_data, start, end, line=[]):

start_line = find_line(data, start, line)

end_line = find_line(data, end, line)

if start_line == end_line:

return [sub_line(data, start_line, start, end)]

else:

# 查找start后面的哪一个站点可以换乘

# site, line = find_transfer(data[start_line], start, 1, line=[])

all_line = find_transfer_data(line_data, start_line, end_line)

value = []

for row in all_line:

value.append(get_lines(data, row, start, end))

lines = []

get_all_line(value, end, lines, [])

return lines

def get_end_number(lineData, end, nuber):

'''

取得能够到达终点的个数

:param lineData:

:param end:

:return:

'''

if lineData.next_d is None:

if lineData.end == end:

nuber += 1

return nuber

else:

return nuber

else:

if type(lineData.next_d) == LineData:

nuber += get_end_number(lineData.next_d, end, nuber)

else:

for row in lineData.next_d:

nuber += get_end_number(row, end, nuber)

return nuber

def get_all_line(lineData, end, list, data):

'''

根据数据取得所有的路线图

:param lineData:

:return:

'''

if type(lineData) == LineData:

if lineData.next_d is None:

if lineData.end == end:

data.append({'start': lineData.start, 'end': lineData.end,

'line': lineData.line, 'data': lineData.ld})

list.append(data)

else:

if type(lineData.next_d) == LineData:

d = data[:]

d.append({'start': lineData.start, 'end': lineData.end,

'line': lineData.line, 'data': lineData.ld})

get_all_line(lineData.next_d, end, list, d)

else:

for row in lineData.next_d:

d = data[:]

d.append({'start': lineData.start, 'end': lineData.end,

'line': lineData.line, 'data': lineData.ld})

get_all_line(row, end, list, d)

else:

for row in lineData:

get_all_line(row, end, list, data[:])

def print_lineData(lineData):

'''

打印出路线图

:param lineData:

:return:

'''

class LineData(object):

def __init__(self, line, ld, start, end, next):

self.line = line

self.ld = ld

self.start = start

self.end = end

self.next_d = next

self.number = len(self.ld) - 1

data = {'1': read_line('1.txt'),

'2': read_line('2.txt'),

'3': read_line('3.txt'),

'4n': read_line('4n.txt'),

'6': read_line('6.txt')

}

data, line_data = statistics_transfer(data)

# end = u'富锦路'.encode('utf-8')

end = u'曹杨路'.encode('utf-8')

# end = u'莘庄'.encode('utf-8')

start = u'徐泾东'.encode('utf-8')

# end = u'港城路'.encode('utf-8')

value = calculator_line(data, line_data, start, end)

for row in value:

print '---------------------'

for r in row:

if type(r) == dict:

vl = 'start:' + r['start'] + ';end:' + r['end'] + ';line:' + r['line'] + ';data:'

for d in r['data']:

vl += '-->' + d

print vl

else:

print r

希望大神多多指导，共同改进改进，其中没有公交路线，需要的话可以自己添加进去就行了，按照txt的格式进行，不需要修改其他的。

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