string(230) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=ps%E5%90%83%E6%98%BE%E5%8D%A1%E8%BF%98%E6%98%AF%E7%BA%BF%E7%A8%8B => Failed to connect to 14.18.46.51 port 38206: Connection refused"
ps吃显卡还是线程
