string(357) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%8D%96%E6%B2%B9%E7%BF%81%E4%B8%AD%E9%99%88%E5%B0%A7%E5%92%A8%E5%AF%B9%E5%8D%96%E6%B2%B9%E7%BF%81%E7%9A%84%E6%80%81%E5%BA%A6%E5%8F%98%E5%8C%96%E8%AF%B4%E6%98%8E%E4%BA%86%E4%BB%80%E4%B9%88 => Failed to connect to 101.89.117.144 port 38056: Connection refused"
卖油翁中陈尧咨对卖油翁的态度变化说明了什么
