Remove line numbers from code snippets of old cnblogs.com posts

cnblogs_code_snippet_remove_linenumbers.js

// https://web.archive.org/web/20150421052738/https://www.cnblogs.com/wz19860913/archive/2010/04/29/1723586.html

var spans = document.getElementsByTagName('span');
for (var span of spans) {
  style = span.attributes.style;
  if (style && (style.textContent == "color: #008080" || style.textContent == "color: rgba(0, 128, 128, 1)"))
    span.remove();
}

winsock_req_cn_code.c

/* 
https://web.archive.org/web/20150421052738/https://www.cnblogs.com/wz19860913/archive/2010/04/29/1723586.html

那片土在蓝天上
燃烧的翅膀
[转]利用Winsock实现HTTP的GET请求 

网络爬虫需要从指定的URL通过HTTP协议来获得HTML文件信息，以此从一个URL爬到另一个URL。在Windows平台上，这往往通过WinINet接口实现。
　　但是，如果对HTTP协议熟悉的话，也可以通过Winsock接口实现。代码如下。
*/

#pragma warning (disable:4996)
 
 #define DEFAULT_URL "http://www.google.com"
 
 BOOL WinsockStartup(BYTE highVer, BYTE lowVer)
 {
     WSADATA wsaData;
     return WSAStartup(MAKEWORD(highVer, lowVer), &wsaData) == 0;
 }
 
 int SendData(SOCKET s, char * data)
 {
     return send(s, data, strlen(data), 0);
 }
 
 void ParseTheURL(char * pszURL, char * pszHostName)
 {
     char * p, * pHostStart;
 
     p = strstr(pszURL, "http://");
     if (p && p == pszURL)
     {
         pHostStart = pszURL + 7;
     }
     else
     {
         pHostStart = pszURL;
     }
     p = strchr(pHostStart, '/');
     if (p)
     {
         memcpy(pszHostName, pHostStart, p - pHostStart);
     }
     else
     {
         memcpy(pszHostName, pHostStart, strlen(pHostStart));
     }
 }
 
 int _tmain()
 {
     int iRet = 0;
     DWORD dwError = 0;
     BOOL bOk = FALSE;
 
     char szURL[256] = { 0 };                // 主机文件，即URL
     char szHostName[256] = { 0 };            // 主机名
     char szPortName[] = "80";                // 端口号
 
     if (!WinsockStartup(2, 2))
     {
         _tcprintf(TEXT("初始化Windows Sockets失败！"));
         cin.getline(szURL, 255);
         return -1;
     }
 
     addrinfo aiHints = { 0 };
     addrinfo * aiList;
 
     aiHints.ai_family = AF_INET;
     aiHints.ai_socktype = SOCK_STREAM;
     aiHints.ai_protocol = IPPROTO_TCP;
 
     cout<<"输入URL：";
     cin.getline(szURL, 255);
 
     if (strcmp(szURL, "") == 0)
     {
         strcpy(szURL, DEFAULT_URL);
         cout<<DEFAULT_URL<<endl;
     }
 
     ParseTheURL(szURL, szHostName);
 
     if (getaddrinfo(szHostName, szPortName, NULL, &aiList) != 0)
     {
         _tcprintf_s(TEXT("getaddrinfo失败：%d"), WSAGetLastError());
         WSACleanup();
         cin.getline(szURL, 255);
         return -1;
     }
 
     SOCKET s;
     for (addrinfo * aiPtr = aiList; aiPtr != NULL; aiPtr = aiPtr->ai_next)
     {
         s = socket(aiList->ai_family, aiList->ai_socktype, aiList->ai_protocol);
         if (s == INVALID_SOCKET)
         {
             _tcprintf_s(TEXT("socket创建失败：%d"), WSAGetLastError());
             continue;
         }
 
         if (connect(s, aiPtr->ai_addr, aiPtr->ai_addrlen) == SOCKET_ERROR)
         {
             closesocket(s);
             s = INVALID_SOCKET;
             _tcprintf_s(TEXT("connect失败：%d"), WSAGetLastError());
             continue;
         }
         break;
     }
 
     freeaddrinfo(aiList);
 
     if (s == INVALID_SOCKET)
     {
         WSACleanup();
         cin.getline(szURL, 255);
         return -1;
     }
 
     char requestData[512] = { 0 };
     sprintf(requestData, "GET %s HTTP/1.1\r\n", szURL);
     SendData(s, requestData);
     //SendData(s, "GET / HTTP/1.1\r\n");
     sprintf(requestData, "Host:%s\r\n", szHostName);
     SendData(s, requestData);
     SendData(s, "Accept: */*\r\n");
     SendData(s, "User-Agent: Mozilla/4.0(compatible; MSIE 5.00; Windows NT)\r\n");
     SendData(s, "Connection:Close\r\n");
     //SendData(s, "Connection:Keep-Alive\r\n");
     SendData(s, "\r\n");
     SendData(s, "\r\n");//最后要加空行
 
     BOOL done = FALSE;
     char buffer[1024] = { 0 };
     int l, chars = 0;
 
     // 打印http响应的头部
     while (!done)
     {
         l = recv(s, buffer, 1, 0);
         if (l <= 0)
             done = TRUE;
         switch(*buffer)
         {
         case '\r':
             break;
         case '\n':
             if(chars == 0)
                 done = TRUE;
             chars = 0;            // 表示另起一行
             break;
         default:
             ++chars;
             break;
         }
         printf("%c",*buffer);
     }
 
     // 接收正文部分
     int sum = 0;
     do
     {
         l = recv(s, buffer, sizeof (buffer) - 1, 0);
         if( l <= 0 )
             break;
         sum += l;
         *(buffer + l) = 0;
         printf(buffer);
     } while( l > 0 );
 
     //这里输出正文部分大小，发现其实和响应消息头部的Content-length大小是一样的
     //这样就可以检查是否接受完毕
     printf("\n\n大小 = %d字节\n",sum);
 
     WSACleanup();
 
     cin.getline(szURL, 255);
     return 0;
 }