从telnet www.baidu.com 80来玩一下http
在之前的博文中，我么用C代码玩过http, 在本文中， 我们用更简单的telnet命令来玩http, 爽一下, 步骤如下：
步骤1：用win + r 打开cmd
步骤2：在cmd中执行telnet www.baidu.com 80， 然后可以看到一个黑色的框框（首先要确保自己的PC可以访问www.baidu.com哈）
步骤3： 然后按 ctrl + ], 退出， 结果为：
欢迎使用 Microsoft Telnet Client
Escape 字符是 'CTRL+]'
Microsoft Telnet>
步骤4： 然后按enter, 进入到输入框， 又是黑漆漆的一片
步骤5：输入如下内容（有时间限制， 所以最好是先写好， 然后整体拷贝进去）
GET /index.html HTTP/1.1
Host: www.baidu.com
步骤6：然后连续按两下enter键盘， 得到的结果为：
GET /index.html HTTP/1.1
Host: www.baidu.com
HTTP/1.1 200 OK
Date: Sun, 11 Oct 2015 15:30:57 GMT
Content-Type: text/html
Content-Length: 14613
Last-Modified: Wed, 03 Sep 2014 02:48:32 GMT
Connection: Keep-Alive
Vary: Accept-Encoding
Set-Cookie: BAIDUID=FC14FFF7024BB891AAEFBAFDC8F5CC21:FG=1; expires=Thu, 31-Dec-3
7 23:55:55 GMT; max-age=2147483647; path=/; domain=.baidu.com
Set-Cookie: BIDUPSID=FC14FFF7024BB891AAEFBAFDC8F5CC21; expires=Thu, 31-Dec-37 23
:55:55 GMT; max-age=2147483647; path=/; domain=.baidu.com
Set-Cookie: PSTM=1444577457; expires=Thu, 31-Dec-37 23:55:55 GMT; max-age=214748
3647; path=/; domain=.baidu.com
Set-Cookie: BDSVRTM=0; path=/
P3P: CP=" OTI DSP COR IVA OUR IND COM "
Server: BWS/1.1
X-UA-Compatible: IE=Edge,chrome=1
Pragma: no-cache
Cache-control: no-cache
BDPAGETYPE: 1
BDQID: 0x8db1534b00081190
BDUSERID: 0
Accept-Ranges: bytes
<!DOCTYPE html><!--STATUS OK-->
<html>
<head>
<meta http-equiv="content-type" content="text/html;charset=utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=Edge">
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<link rel="dns-prefetch" href="//t3.baidu.com"/>
<link rel="dns-prefetch" href="//t10.baidu.com"/>
<link rel="dns-prefetch" href="//t11.baidu.com"/>
<link rel="dns-prefetch" href="//t12.baidu.com"/>
<link rel="dns-prefetch" href="//b1.bdstatic.com"/>
<title>鐧惧害涓€涓嬶紝浣犲氨鐭ラ亾</title>
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down="return c({'fm':'tab','tab':'pic'})">鍥剧墖</a>　<a href="http://v.ba
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du.com/m?word=&fr=ps01000" wdfield="word" onmousedown="return c({'fm':'tab','ta
b':'map'})">鍦板浘</a>　<a href="http://wenku.baidu.com/search?word=&lm=0&
od=0" wdfield="word" onmousedown="return c({'fm':'tab','tab':'wenku'})">鏂囧簱<
/a>　<a href="//www.baidu.com/more/" onmousedown="return c({'fm':'tab','t
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u.com/go/mini/8/10000020" onmousedown="return ns_c({'fm':'behs','tab':'bdbrowser
'})">鐧惧害娴忚鍣紝鎵撳紑缃戦〉蹇?绉掞紒</a></span></span></form></div><div
id="content"><div id="u1"><a href="http://news.baidu.com" name="tj_trnews" clas
s="mnav">鏂伴椈</a><a href="http://www.hao123.com" name="tj_trhao123" class="mna
v">hao123</a><a href="http://map.baidu.com" name="tj_trmap" class="mnav">鍦板浘<
/a><a href="http://v.baidu.com" name="tj_trvideo" class="mnav">瑙嗛</a><a href
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s://passport.baidu.com/v2/?login&tpl=mn&u=http%3A%2F%2Fwww.baidu.com%2F" name="t
j_login" id="lb" onclick="return false;">鐧诲綍</a><a href="//www.baidu.com/gaoj
i/preferences.html" name="tj_settingicon" id="pf">璁剧疆</a><a href="//www.baidu
.com/more/" name="tj_briicon" id="bri">鏇村浜у搧</a></div><div id="m"><p id="
lg"><img src="//www.baidu.com/img/bd_logo.png" width="270" height="129"></p><p i
d="nv"><a href="http://news.baidu.com">鏂?nbsp;闂?/a>銆€<b>缃?nbsp;椤?/b>銆€
<a href="http://tieba.baidu.com">璐?nbsp;鍚?/a>銆€<a href="http://zhidao.baidu
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lass="bg s_btn" onmousedown="this.className='bg s_btn s_btn_h'" onmouseout="this
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s="mMenu1-tip-arrow"><em></em><ins></ins></div><li><a href="javascript:;" name="
ime_hw">鎵嬪啓</a></li><li><a href="javascript:;" name="ime_py">鎷奸煶</a></li><
li class="ln"></li><li><a href="javascript:;" name="ime_cl">鍏抽棴</a></li></ul>
</div><p id="lk"><a href="http://baike.baidu.com">鐧剧</a>銆€<a href="http://w
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sp;| <a href="//www.baidu.com/more/">鏇村>></a></span></p><p id="lm
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如上就是百度服务器返回的信息， 挺有意思的， OK, 先玩到这里， 准备睡觉。