Python——爬取人口遷徙數據（以騰訊遷徙爲例）

說明：

1.遷徙量是騰訊修改後的數值，沒法確認真實性。

2.代碼運行期間，騰訊遷徙未設置IP屏蔽和瀏覽器檢測，所以下段代碼僅能保證發佈近期有效。

3.代碼功能：爬取指定一天的四十（此四十是根據本身的城市列表而定，可多可少，並沒有限制）個城市左右的遷徙量（含遷入、遷出）。

 1 import re
 2 import urllib.request
 3 import xlwt
 4 import xlrd
 5 
 6 date = "20171016"
 7 cityList = xlrd.open_workbook("E:/city.xls").sheet_by_index(0).col_values(0) # ['city', '南昌', '景德鎮', '萍鄉', ...
 8 cityCodeList = xlrd.open_workbook("E:/city.xls").sheet_by_index(0).col_values(1) # ['cityCode', '360100', '360200',...
 9 direction = ["0","1"]
10 header = ["from","to","number","car","train","plane"]
11 dInd = 0
12 for cityIndex in range(1,len(cityCodeList)):
13     for dInd in range(2):
14         url = "https://lbs.gtimg.com/maplbs/qianxi/" + date + "/" + cityCodeList[cityIndex] + direction[dInd] + "6.js" # "0 遷入": result-city,"1 遷出:city-result
15         workbook = xlwt.Workbook()
16         sheet = workbook.add_sheet("result")
17         for i in range(len(header)):
18             sheet.write(0,i,header[i])
19         ptRow = re.compile('(\[".*?\])')
20         ptCity = re.compile("")
21         try:
22             data = urllib.request.urlopen(url).read().decode("utf8") # JSONP_LOADER&&JSONP_LOADER([["重慶",198867,0.000,0.300,0.700],["上海",174152,0.160,0.390,0.450],[...
23             dataList = re.findall(ptRow,data) # ['["重慶",198867,0.000,0.300,0.700]', '["上海",174152,0.160,0.390,0.450]',[...
24             for i in range(len(dataList)):
25                 colList = str(dataList[i]).split(",") # colList[4] = 0.700]
26                 if direction[dInd] == "0":
27                     sheet.write(i + 1, len(header) - 6, str(colList[0]).replace("[","").replace('"',"")) # city
28                     sheet.write(i + 1, len(header) - 5, cityList[cityIndex])
29                 else:
30                     sheet.write(i + 1, len(header) - 6, cityList[cityIndex])
31                     sheet.write(i + 1, len(header) - 5, str(colList[0]).replace("[","").replace('"',"")) # city
32                 sheet.write(i + 1, len(header) - 4, colList[1]) # number
33                 sheet.write(i + 1, len(header) - 3, colList[2]) # car
34                 sheet.write(i + 1, len(header) - 2, colList[3]) # train
35                 sheet.write(i + 1, len(header) - 1, str(colList[4]).replace("]","")) # plane
36         except Exception as e:
37             print(e)
38         workbook.save("E:/qianxi/" + str(cityList[cityIndex]) + direction[dInd] + date + ".xls")
39 print("Done!")

結果展現：