string(272) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%B4%A2%E7%88%B1K790C%E4%B8%BA%E5%95%A5%E6%89%93%E4%B8%8D%E5%BC%80%E5%B7%A5%E7%A8%8B%E6%A8%A1%E5%BC%8F => Failed to connect to 101.89.117.144 port 38056: Connection refused"
索爱K790C为啥打不开工程模式
