string(270) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%86%99%E4%B8%80%E4%BB%B6%E9%9A%BE%E5%BF%98%E7%9A%84%E4%BA%8B300%E5%AD%97%E5%B0%8F%E7%BB%83%E7%AC%94 => Failed to connect to 125.88.227.171 port 38114: Connection refused"
写一件难忘的事300字小练笔
