string(251) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=ie%E6%80%8E%E4%B9%88%E6%94%B9%E4%B8%8D%E4%BA%86%E9%BB%98%E8%AE%A4%E4%B8%BB%E9%A1%B5 => Failed to connect to 101.89.143.195 port 38175: Connection refused"
ie怎么改不了默认主页
