string(267) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=d%E7%9B%98%E4%B8%8D%E8%83%BD%E6%A0%BC%E5%BC%8F%E5%8C%96%E6%98%AF%E6%80%8E%E4%B9%88%E5%9B%9E%E4%BA%8B => Failed to connect to 101.91.112.32 port 38221: Connection refused"
d盘不能格式化是怎么回事
