#!/usr/bin/env python
# -*- coding: utf-8 -*-
# @Time    : 2017/4/19 10:43
# @Author  : WuFan

import bs4
import requests
import re
import xlwt
import datetime

date = datetime.datetime.now().strftime('%Y-%m-%d')                    # 給檔案打上時間戳，便於資料更新
url = 'https://www.aliexpress.com/wholesale'                           # 網址
payload = {'SearchText': 'nike', 'page': '1', 'ie': 'utf8', 'g': 'y'}  # 字典傳遞url引數

# 初始化資料容器
title = []
price = []
order = []
store = []

for i in range(0, 5):        # 迴圈5次，就是5個頁的商品資料
    payload['page'] = i+ 1    # 此處為頁碼，根據網頁引數具體設定
    resp = requests.get(url, params=payload)
    soup = bs4.BeautifulSoup(resp.text, "html.parser")
    print(resp.url)          # 列印訪問的網址
    resp.encoding = 'utf-8'  # 設定編碼

    # 標題
    all_title = soup.find_all('a', class_=re.compile("history-item product"))
    for j in all_title:
        soup_title = bs4.BeautifulSoup(str(j), "html.parser",)
        title.append(soup_title.a['title'])
    # 價格
    all_price = soup.find_all('span', itemprop="price")
    for k in all_price:
        soup_price = bs4.BeautifulSoup(str(k), "html.parser")
        price.append(soup_price.span.string)
    # 訂單量
    all_order = soup.find_all('a', class_=re.compile("order-num-a"))
    for l in all_order:
        soup_order = bs4.BeautifulSoup(str(l), "html.parser")
        order.append(soup_order.em.string)
    # 店鋪名稱
    all_store = soup.find_all('div', class_="store-name util-clearfix")
    for m in all_store:
        soup_store = bs4.BeautifulSoup(str(m), "html.parser")
        store.append(soup_store.a.string)

# 資料驗證
print(len(title))
print(len(price))
print(len(order))
print(len(store))

if len(title) == len(price) == len(order) == len(store):
    print("資料完整，生成 %d 組商品資料！" % len(title))

# 寫入excel文件
print("正在寫入excel表格...")
wookbook = xlwt.Workbook(encoding='utf-8')  # 建立工作簿
data_sheet = wookbook.add_sheet('demo')     # 建立sheet

# 生成每一行資料
for n in range(len(title)):
    data_sheet.write(n, 0, n+1)
    data_sheet.write(n, 1, title[n])        # n 表示行， 1 表示列
    data_sheet.write(n, 2, price[n])
    data_sheet.write(n, 3, order[n])
    data_sheet.write(n, 4, store[n])


wookbook.save("%s-%s.xls" % (payload['SearchText'], date))
print("寫入excel表格成功！")
 

——BTW———