string(233) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=21%E5%B9%B4%E5%88%9D%E7%BA%A7%E6%99%A8%E9%98%B3%E7%AC%94%E8%AE%B0 => Failed to connect to 101.89.159.206 port 38100: Connection refused"
21年初级晨阳笔记
