想写个文件下载器

[x363635334]

http的吧
比如http://images.enet.com.cn/eschool/corldrawx3/367992.swf这样的存为1.swf

在csdn搜源码费了我不少分,不知道是人笨还是咋的,不如直接在这求了

[Gloveing]

#include <stdio.h>
#include <windows.h>
#include <wininet.h>
#define MAXBLOCKSIZE 1024
#pragma comment( lib, "wininet.lib" ) 

void download(const char *Url,const char *save_as)/*将Url指向的地址的文件下载到save_as指向的本地文件*/
{
	byte Temp[MAXBLOCKSIZE];
	ULONG Number = 1;
	
	FILE *stream;
	HINTERNET hSession = InternetOpen("RookIE/1.0", INTERNET_OPEN_TYPE_PRECONFIG, NULL, NULL, 0);
	if (hSession != NULL)
	{
		HINTERNET handle2 = InternetOpenUrl(hSession, Url, NULL, 0, INTERNET_FLAG_DONT_CACHE, 0);
		if (handle2 != NULL)
		{
			
			
			if( (stream = fopen( save_as, "wb" )) != NULL )
			{
				while (Number > 0)
				{
					InternetReadFile(handle2, Temp, MAXBLOCKSIZE - 1, &Number);
					
					fwrite(Temp, sizeof (char), Number , stream);
				}
				fclose( stream );
			}
			
			InternetCloseHandle(handle2);
			handle2 = NULL;
		}
		InternetCloseHandle(hSession);
		hSession = NULL;
	}
}

int main(int argc, char* argv[]){
	
	download("http://blog.csdn.net/agoago_2009/","C:\\Users\\ago\\Desktop\\index.html");
	return 0;
}

[npuhuxl]

应该就是发一个HTTP的GET请求。然后把服务器返回的数据保存到1.swf

[__lhy]

发GET包
然后根据返回的http包解析出Content-Length
Content-Length就是文件的长度 后面附带的就是文件

[x363635334]

谢谢各位大侠