python socket向百度发送http长连接请求 并做搜索

#coding=gbk ''' socket 给百度发送http请求 连接成功后，发送http的get请求，所搜索功能 ''' import socket import sys import time if __name__=='__main__': #创建套接字 try : sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) except socket.eorror,e: print 'socket false:%s'%e print 'socket ...' #连接百度ip try : sock.connect(('220.181.111.148',80)) except socket.error,e: print 'connect false %s'%e sock.close() print 'connect ...' #发送百度首页面请求并且保持连接 try : print 'send start...' str='GET / HTTP/1.1\r\nHost:www.baidu.com\r\nConnection:keep-alive\r\n\r\n' sock.send(str) except socket.eorror,e: print 'send false' sock.close() data='' data = sock.recv(1024) while (1): '''如何判断数据接收完毕，在发送http 最前端, 包含发送数据文件大小属性Content-Length， 用字符匹配方式取得文件大小, 同过大小判断是否接收完毕。 ''' print data beg = data.find('Content-Length:',0,len(data)) end = data.find('Content-Type:',0,len(data)) print beg print end if(beg == end): print 'connecting closed' break num = long(data[beg+16:end-2]) print num nums = 0 while (1): data=sock.recv(1024) print data nums +=len(data) if(nums >= num): break word = raw_input('please input your word----->') str='''GET /s?wd=''' + word + ''' HTTP/1.1 Host:www.baidu.com Connection: Keep-Alive ''' print str sock.send(str) data = '' data = sock.recv(1024) sock.close() print data