l1264140691 发表于 2021-3-16 19:51:11

关于爬虫爬有道

代码如下：

import urllib.request
import urllib.parse
import json


url='http://fanyi.youdao.com/translate_o?smartresult=dict&smartresult=rule'

data={}
data['i']= '我爱你'
data['from']= 'AUTO'
data['to']= 'AUTO'
data['smartresult']= 'dict'
data['client']='fanyideskweb'
data['salt']='16158939221439'
data['sign']='8e965d2055997935c58cddd05247c476'
data['lts']='1615893922143'
data['bv']='8d869977ed9730c759a83d50a1f65ed0'
data['doctype']='json'
data['version']='2.1'
data['keyfrom']='fanyi.web'
data['action']='FY_BY_CLICKBUTTION'

data=urllib.parse.urlencode(data).encode('utf-8')
request=urllib.request.Request(url=self.url,data=data,method='POST')
reponse=urllib.request.urlopen(request)
html=response.read().decode('utf-8')
print(html)
   

为什么运行老是说
Traceback (most recent call last):
File "E:/python/pachong_test.py", line 25, in <module>
    request=urllib.request.Request(url=self.url,data=data,method='POST')
NameError: name 'self' is not defined

是我request=那排出了什么问题吗

LuLD 发表于 2021-3-16 20:11:08

Traceback (most recent call last):
File "E:/python/pachong_test.py", line 25, in <module>
    request=urllib.request.Request(url=self.url,data=data,method='POST')
NameError: name 'self' is not defined


这不是提示的很明显的么？第25 行中 self 没有声明

按照 你上述中self.url改成 url 试试

l1264140691 发表于 2021-3-16 20:15:01

LuLD 发表于 2021-3-16 20:11
Traceback (most recent call last):
File "E:/python/pachong_test.py", line 25, in
    request=ur ...

request=urllib.request.Request(url,data)
改成这样又说response没有声明

l1264140691 发表于 2021-3-16 20:19:22

LuLD 发表于 2021-3-16 20:11
Traceback (most recent call last):
File "E:/python/pachong_test.py", line 25, in
    request=ur ...

直接把url=self.url改成url=url也会说response没有声明

Hoiste 发表于 2021-3-16 20:46:31

再把reponse=urllib.request.urlopen(request)括号里面的request改成url试试

l1264140691 发表于 2021-3-16 21:29:45

Hoiste 发表于 2021-3-16 20:46
再把reponse=urllib.request.urlopen(request)括号里面的request改成url试试

还是不行，代码明明都是一样的{:10_285:}

何江 发表于 2021-3-16 22:57:47

reponse=urllib.request.urlopen(request)
html=response.read().decode('utf-8')
reponse和response能一样嘛- -{:10_250:}

何江 发表于 2021-3-16 22:59:00

import urllib.request
import urllib.parse
import json
url='http://fanyi.youdao.com/translate?smartresult=dict&smartresult=rule'
data={}
data['i']= '我爱你'
data['from']= 'AUTO'
data['to']= 'AUTO'
data['smartresult']= 'dict'
data['client']='fanyideskweb'
data['salt']='16158939221439'
data['sign']='8e965d2055997935c58cddd05247c476'
data['lts']='1615893922143'
data['bv']='8d869977ed9730c759a83d50a1f65ed0'
data['doctype']='json'
data['version']='2.1'
data['keyfrom']='fanyi.web'
data['action']='FY_BY_CL1CKBUTTON'
data=urllib.parse.urlencode(data).encode('utf-8')
response = urllib.request.urlopen(url,data)
html = response.read().decode('utf-8')
print(html)

小伤口 发表于 2021-3-16 23:24:53

import urllib.request
import urllib.parse
import json


url='http://fanyi.youdao.com/translate?smartresult=dict&smartresult=rule'#请将_o这个删掉不然爬不了想要的内容

data={}
data['i']= '我爱你'
data['from']= 'AUTO'
data['to']= 'AUTO'
data['smartresult']= 'dict'
data['client']='fanyideskweb'
data['salt']='16158939221439'
data['sign']='8e965d2055997935c58cddd05247c476'
data['lts']='1615893922143'
data['bv']='8d869977ed9730c759a83d50a1f65ed0'
data['doctype']='json'
data['version']='2.1'
data['keyfrom']='fanyi.web'
data['action']='FY_BY_CLICKBUTTION'

data=urllib.parse.urlencode(data).encode('utf-8')
request=urllib.request.Request(url,data)#直接url，data就行，当然你那样也可以,不过没必要加上self,直接url=url
response=urllib.request.urlopen(request)#这儿少了一个s ，我帮你加上了
html=response.read().decode('utf-8')
print(html)

LuLD 发表于 2021-3-17 10:56:11

l1264140691 发表于 2021-3-16 20:19
直接把url=self.url改成url=url也会说response没有声明

7# 的老板 回复 我也是这么认为的，名字没写对

reponse=urllib.request.urlopen(request)
html=response.read().decode('utf-8')

或者 你直接复制 8# 老板的 代码先测试，达到你预期的效果后，再和你的对比

han125416866 发表于 2021-3-18 14:34:20

{:5_100:}
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