string(274) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=1000%E5%85%86%E5%AE%BD%E5%B8%A6%E6%B5%8B%E9%80%9F%E5%8F%AA%E6%9C%89500%E5%85%86%E6%80%8E%E4%B9%88%E5%8A%9E => Failed to connect to 101.89.166.210 port 38089: Connection refused"
1000兆宽带测速只有500兆怎么办
