import urllib.parse

#准备字典数据

data = { 'host':'www.baidu.com', 'name':'百度' }

#进行url编码

data = urllib.parse.urlencode(data) print(data) #host=www.baidu.com&name=%E7%99%BE%E5%BA%A6

url解码

data = urllib.parse.unquote(data) print(data) #host=www.baidu.com&name=百度

#进行url编码（所有字符串，用得少） data = urllib.parse.quote(data) print(data)

Get请求

import urllib.request import urllib.parse

#准备url

url = 'https://www.baidu.com/s?'

#wd=传智播客移动到param #准备字典参数

param = { 'wd':'传智播客' }

#字典有中文需要对参数进行url编码

param_str =urllib.parse.urlencode(param)

#把参数拼接到url上

url =url +param_str print(url)

#准备请求头(防止反爬需要headers)

headers = { 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.121 Safari/537.36' } request = urllib.request.Request(url,headers=headers)

#发送请求

response = urllib.request.urlopen(request) print(response.read().decode()) #Ctrl+f进行搜索

源代码:

import urllib.request import urllib.parse url = 'https://www.baidu.com/s?' param = { 'wd':'传智播客' } param_str =urllib.parse.urlencode(param) url =url +param_str print(url) headers = { 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.121 Safari/537.36' } request = urllib.request.Request(url,headers=headers) response = urllib.request.urlopen(request) print(response.read().decode()) #Ctrl+f进行搜索