py 爬虫 requests库 用法（一）//源码

In [4]:
print(“hello”)
hello
In [3]:
import requests
import urllib
In [7]:
print(1+2)
3
测试¶

In [17]:
import requests
res=requests.get(“http://httpbin.org/get“)
print(res.text)
{
“args”: {},
“headers”: {
“Accept”: “/“,
“Accept-Encoding”: “gzip, deflate”,
“Connection”: “close”,
“Host”: “httpbin.org”,
“User-Agent”: “python-requests/2.14.2”
},
“origin”: “61.183.192.18”,
“url”: “http://httpbin.org/get”
}

In [31]:
import requests
import json
data={
“username”:”zcc”,
“password”:”12580”,
}
res=requests.get(“http://httpbin.org/get“,params=data)
print(res.text)
print(res.json())
print(json.loads(res.text))
{
“args”: {
“password”: “12580”,
“username”: “zcc”
},
“headers”: {
“Accept”: “/“,
“Accept-Encoding”: “gzip, deflate”,
“Connection”: “close”,
“Host”: “httpbin.org”,
“User-Agent”: “python-requests/2.14.2”
},
“origin”: “61.183.192.18”,
“url”: “http://httpbin.org/get?username=zcc&password=12580”
}

{‘args’: {‘password’: ‘12580’, ‘username’: ‘zcc’}, ‘headers’: {‘Accept’: ‘/‘, ‘Accept-Encoding’: ‘gzip, deflate’, ‘Connection’: ‘close’, ‘Host’: ‘httpbin.org’, ‘User-Agent’: ‘python-requests/2.14.2’}, ‘origin’: ‘61.183.192.18’, ‘url’: ‘http://httpbin.org/get?username=zcc&password=12580‘}
{‘args’: {‘password’: ‘12580’, ‘username’: ‘zcc’}, ‘headers’: {‘Accept’: ‘/‘, ‘Accept-Encoding’: ‘gzip, deflate’, ‘Connection’: ‘close’, ‘Host’: ‘httpbin.org’, ‘User-Agent’: ‘python-requests/2.14.2’}, ‘origin’: ‘61.183.192.18’, ‘url’: ‘http://httpbin.org/get?username=zcc&password=12580‘}
文件操作¶

In [2]:
import requests
res=requests.get(“http://logo.www.sogou.com/images/logo2014/new/favicon.ico“);

print(res.content)

with open(‘favin.ico’,’wb’)as s:
s.write(res.content)
s.close

状态码¶

In [28]:
import requests
response=requests.get(“http://www.baidu.com“)
exit() if not response.status_code ==200 else print(“request successfully!”)
request successfully!
cookie¶

In [38]:
import requests
res=requests.get(“http://www.baidu.com“)
for key ,value in res.cookies.items():
print(key+”=”+value)
BDORZ=27315