string(249) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%80%E5%BB%BA%E5%90%AC%E4%BA%86%E4%B8%80%E9%81%8D%E8%AE%B0%E4%B8%8D%E4%BD%8F => Failed to connect to 101.89.117.144 port 38017: Connection refused"
一建听了一遍记不住
