Python金融量化交易教程 中文pdf高清版下载
代码1:
import urllib.request for urlcontent in urllib.request.urlopen('http://www.3qphp.com/python/Pythoncode/154.html'): urlcontent = urlcontent.decode('utf-8') print(urlcontent)
代码2:
import urllib.request response = urllib.request.urlopen('http://www.3qphp.com/python/Pythoncode/154.html') response = response.read(); response = response.decode('utf-8') print(response)
代码3:
response = urllib.request.urlopen('http://www.3qphp.com/python/Pythoncode/154.html') print(response)
#print() 得到的结果 <http.client.HTTPResponse object at 0x02075370>
说明:
1、代码1和代码2 print()打印的结果相同。但是获取内容时一个使用了for循环,一个使用了read()函数,注释掉
urlcontent = urlcontent.decode('utf-8')和response = response.decode('utf-8')就会看到他们格式上的差异。
2、代码3说明urllib.request.urlopen返回http.client.HTTPResponse对象(http.client模块下的)
respons对象包含header,status code,body
文档原文:
For http and https urls, this function returns a http.client.HTTPResponse object which has the following HTTPResponse Objects methods.
通过HTTPResponse.read()方法,读取和返回response的body部分
3、HTTPResponse</a>.read()获取的数据类型为bytes类型,需要decode()解码,转换成str类型