在電商行業(yè)中，我們經(jīng)常需要對(duì)同行的產(chǎn)品進(jìn)行分析對(duì)比，今天我就給大家分享一個(gè)Haskell函數(shù)結(jié)合WebBits庫(kù)編寫(xiě)的采集淘寶圖片的例子，非常的簡(jiǎn)單實(shí)用，一起來(lái)學(xué)習(xí)一下吧。

```haskell

-- 導(dǎo)入必要的庫(kù)

import Network.HTTP.Simple

import Network.HTTP.Client

import Network.HTTP.Types.Status

import Data.ByteString.Lazy

import Data.Maybe

import Control.Monad.IO.Class

-- 獲取代理IP地址

getProxy :: IO (Maybe String)

getProxy = do

response <- httpLBS "https://www.duoip.cn/get_proxy"

let status = responseStatus response

if status == Status OK

then return $ Just $ responseBody response

else return Nothing

-- 使用代理IP地址訪問(wèn)目標(biāo)網(wǎng)站

fetchImage :: String -> IO (Maybe ByteString)

fetchImage proxy = do

manager <- newManager (tlsManagerSettings { managerProxy = Just (Proxy proxy) })

response <- httpLBS ("https://www.taobao.com" :: String) manager

let status = responseStatus response

if status == Status OK

then return $ Just $ responseBody response

else return Nothing

-- 主函數(shù)

main :: IO ()

main = do

proxy <- getProxy

case proxy of

Just p -> do

image <- fetchImage p

case image of

Just img -> print (show img)

Nothing -> putStrLn "無(wú)法獲取圖片"

Nothing -> putStrLn "無(wú)法獲取代理地址"

```

我們可以很清晰的看到，上面的示例是通過(guò)獲取不同的代理輪換，然后對(duì)淘寶進(jìn)行訪問(wèn)，并打印獲取到各種圖片數(shù)據(jù)。不過(guò)，這個(gè)示例程序僅用于學(xué)習(xí)交流，可能需要根據(jù)實(shí)際情況進(jìn)行調(diào)整。