python2与python3爬虫中get与post对比解析
python2中的urllib2改为python3中的urllib.request
四种方式对比:
python2的get
#coding=utf-8 importurllib importurllib2 word=urllib.urlencode({"wd":"百度"}) url='http://www.baidu.com/s'+'?'+word request=urllib2.Request(url) printurllib2.urlopen(request).read().decode('utf-8')
python3的get
importurllib.request importurllib.parse data=urllib.parse.urlencode({'wd':'百度'}) url='http://wwww.baidu.com/s?'+data #url='http://www.baidu.com/s?wd='+urllib.parse.quote('百度') response=urllib.request.urlopen(url) print(response.read().decode('utf-8'))
python2的post
#coding=utf-8 importurllib importurllib2 formdata={ 'name':'百度' } data=urllib.urlencode(formdata) request=urllib2.Request(url="http://httpbin.org/post",data=data) response=urllib2.urlopen(request) printresponse.read()
python3的post
importurllib.parse importurllib.request data=bytes(urllib.parse.urlencode({'name':'百度'}),encoding='utf8') response=urllib.request.urlopen('http://httpbin.org/post',data=data) print(response.read().decode('utf-8'))
或
importurllib.parse importurllib.request request=urllib.request.Request('http://httpbin.org/post',data=bytes(urllib.parse.urlencode({'name':'百度'}),encoding='utf8))')) response=urllib.request.urlopen(request) print(response.read().decode('utf-8'))
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