string(239) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%95%B4%E4%B9%88%E6%B8%85%E7%90%86%E7%94%B5%E8%84%91%E5%86%85%E5%AD%98 => Failed to connect to 101.89.120.29 port 38058: Connection refused"
整么清理电脑内存
