Python

wenwen9898

图片不知道存在哪
import urllib.request?
req = urllib.request.Request("http://placekitten.com/g/500/600")
response = urllib.request.urlopen(req)
cat_img = response.read()

with open('cat_500_600.jpg','wb') as f:
    f.write(cat_img)

zltzlt

存在你的程序文件夹下

qiuyouzhi

你的程序放在哪里，图片就放在哪里
想要更改，就用os模块的chdir

wenwen9898

zltzlt 发表于 2020-3-15 12:44
存在你的程序文件夹下

文件夹下只有创建的那个文件，没有显示图片

zltzlt

wenwen9898 发表于 2020-3-15 13:06
文件夹下只有创建的那个文件，没有显示图片

那就指定绝对路径，比如 ：

import urllib.request
req = urllib.request.Request("http://placekitten.com/g/500/600")
response = urllib.request.urlopen(req)
cat_img = response.read()

with open('D:/cat_500_600.jpg','wb') as f:
    f.write(cat_img)

用上面的代码，图片就存在 D 盘根目录

wenwen9898

Traceback (most recent call last):
  File "C:/Program Files/Python37/dowload_cat.py", line 4, in <module>
    response = urllib.request.urlopen(req)
  File "C:\Program Files\Python37\lib\urllib\request.py", line 222, in urlopen
    return opener.open(url, data, timeout)
  File "C:\Program Files\Python37\lib\urllib\request.py", line 525, in open
    response = self._open(req, data)
  File "C:\Program Files\Python37\lib\urllib\request.py", line 543, in _open
    '_open', req)
  File "C:\Program Files\Python37\lib\urllib\request.py", line 503, in _call_chain
    result = func(*args)
  File "C:\Program Files\Python37\lib\urllib\request.py", line 1347, in http_open
    return self.do_open(http.client.HTTPConnection, req)
  File "C:\Program Files\Python37\lib\urllib\request.py", line 1322, in do_open
    r = h.getresponse()
  File "C:\Program Files\Python37\lib\http\client.py", line 1344, in getresponse
    response.begin()
  File "C:\Program Files\Python37\lib\http\client.py", line 306, in begin
    version, status, reason = self._read_status()
  File "C:\Program Files\Python37\lib\http\client.py", line 267, in _read_status
    line = str(self.fp.readline(_MAXLINE + 1), "iso-8859-1")
  File "C:\Program Files\Python37\lib\socket.py", line 589, in readinto
    return self._sock.recv_into(b)
ConnectionResetError: [WinError 10054] 远程主机强迫关闭了一个现有的连接。



重新运行就这个样子