string(241) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=u%E7%9B%98%E6%A0%BC%E5%BC%8F%E5%8C%96%E4%BA%86%E6%80%8E%E4%B9%88%E5%BC%84 => Failed to connect to 101.89.143.195 port 38175: Connection refused"
u盘格式化了怎么弄
