string(250) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=ie%E4%B8%BB%E9%A1%B5%E9%BB%98%E8%AE%A4%E5%80%BC%E6%9B%B4%E6%94%B9%E4%B8%8D%E4%BA%86 => Failed to connect to 101.91.112.32 port 38195: Connection refused"
ie主页默认值更改不了
