string(283) "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%E8%8A%B1%E9%92%B1%E4%BA%86%E8%83%BD%E9%80%80%E5%9B%9E%E6%9D%A5%E5%90%97 => Failed to connect to 14.18.117.71 port 38041: Connection refused"
拼多多砍价花钱了能退回来吗
