string(238) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%94%B9%E5%8F%98%E8%87%AA%E5%B7%B1%E7%BB%8F%E5%85%B8%E5%8F%A5%E5%AD%90 => Failed to connect to 61.171.74.35 port 38041: Connection refused"
改变自己经典句子
