string(235) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=ipad%E7%9A%84%E5%9E%83%E5%9C%BE%E6%B8%85%E7%90%86%E7%A8%8B%E5%BA%8F => Failed to connect to 101.89.159.206 port 38087: Connection refused"
ipad的垃圾清理程序
