采集凤凰网，LuaSocket和Lua首当其冲

```lua
-- 引入所有必要的库
local ltn12 = require("ltn12")
local http = require("socket.http")
local url = require("socket.url")
local lua_socket = require("lua_socket")
local json = require("json")
-- 获取代理IP
local function get_proxy()
local proxy_url = "https://www.duoip.cn/get_proxy"
local data, code, headers, ips = http.request(proxy_url)
if code ~= 200 then return nil end
local json_data = json.decode(data)
if not json_data or not json_data.ip then return nil end
return json_data.ip, json_data.port
end
-- 主函数
local function main()
local proxy_ip, proxy_port = get_proxy()
if not proxy_ip then
print("无法获取代理")
return
end
local http_client = http.client()
local function request_video(url)
local response = http_client:request_uri(url, {
method = "GET",
headers = {
["User-Agent"] = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36",
["Accept"] = "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8",
["Accept-Language"] = "zh-CN,zh;q=0.8,en;q=0.6",
["Accept-Encoding"] = "gzip, deflate, sdch",
["Referer"] = "http://www.ifeng.com/",
["Proxy-Connection"] = "keep-alive",
["Connection"] = "keep-alive",
},
proxy = {
ip = proxy_ip,
port = proxy_port,
},
})
local data, code, headers = response:get_data()
if code ~= 200 then return nil end
local html = data
-- 在这里，可以使用Lua的正则表达式或者其他HTML解析库来提取视频链接
-- 例如，使用正则表达式：
local pattern = "<video.+?src\s*=\s*\"(http.+?)\".+?"</video.+?src\s*=\s*\"(http.+?)\".+?
local video_url = html:match(pattern)
if video_url then
print("视频链接：", video_url)
else
print("无法提取视频链接")
end
end
local ifeng_url = "http://www.ifeng.com/"
request_video(ifeng_url)
end
-- 运行主函数
main()
```