使用urllib和urllib2模块，发送get请求，urllib和urllib2模块需要time模块配合一起使用。
python2.7发送get请求代码：
#!/usr/bin/python
# -*- coding=utf8 -*-
import time
import urllib
import urllib2
req = urllib2.Request("http://zixuephp.net?id=1")
opener = urllib2.build_opener()
resp = opener.open(req)
content = resp.read()
print content如果请求失败的异常捕获：
#!/usr/bin/python
# -*- coding=utf8 -*-
import time
import urllib
import urllib2
try:
req = urllib2.Request("http://zixuephp.net?id=1")
opener = urllib2.build_opener()
resp = opener.open(req)
content = resp.read()
print content
except httplib.HTTPException, e:
raise str(e)
except urllib2.HTTPError, e:
print "err code:%s, message:%s" % (e.code ,httplib.responses[e.code])
raise str(e)
except urllib2.URLError, e:
raise str(e)
except:
raise "请求失败 error"
