string(285) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%8B%BC%E5%A4%9A%E5%A4%9A%E7%A0%8D%E4%BB%B7%E6%98%BE%E7%A4%BA%E6%88%90%E5%8A%9F%E4%BD%86%E6%98%AF%E6%97%A0%E6%95%88 => Failed to connect to 125.88.227.171 port 38114: Connection refused"
拼多多砍价显示成功但是无效
