string(260) "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%E4%B8%BB%E9%A1%B5%E4%BF%AE%E6%94%B9%E4%B8%8D%E8%BF%87%E6%9D%A5 => Failed to connect to 101.89.159.206 port 38075: Connection refused"
ie浏览器主页修改不过来
