string(267) "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%E4%BA%86%E5%86%85%E5%AE%B9 => Failed to connect to 14.18.117.71 port 38093: Connection refused"
ie浏览器主页修改不了内容
