string(233) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=ie%E9%BB%98%E8%AE%A4%E5%9C%B0%E5%9D%80%E6%94%B9%E4%B8%8D%E4%BA%86 => Failed to connect to 125.88.227.171 port 38062: Connection refused"
ie默认地址改不了
