python获取数据

Python获取数据的方法有很多种，以下是其中的几种常见方法：

1. 使用urllib库进行网页数据的获取

import urllib.request

response = urllib.request.urlopen('http://www.example.com/')
html = response.read()
print(html)

2. 使用requests库进行网页数据的获取

import requests

response = requests.get('http://www.example.com/')
html = response.text
print(html)

3. 使用BeautifulSoup库进行网页数据的解析

import requests
from bs4 import BeautifulSoup

response = requests.get('http://www.example.com/')
soup = BeautifulSoup(response.text, 'html.parser')
print(soup.title)

4. 使用正则表达式进行数据的匹配

import re

text = 'hello world'
result = re.findall('hello (\w+)', text)
print(result)

5. 从Excel表格中读取数据

import xlrd

workbook = xlrd.open_workbook('example.xls')
sheet = workbook.sheet_by_index(0)
data = []
for i in range(sheet.nrows):
    row = sheet.row_values(i)
    data.append(row)
print(data)