string(269) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=ie%E6%B5%8F%E8%A7%88%E5%99%A8%E9%BB%98%E8%AE%A4%E4%B8%BB%E9%A1%B5%E7%BD%91%E5%9D%80%E4%BF%AE%E6%94%B9 => Failed to connect to 101.89.143.195 port 38109: Connection refused"
ie浏览器默认主页网址修改
