string(252) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%89%B9%E9%87%8F%E5%9C%A8%E6%96%87%E4%BB%B6%E5%90%8D%E5%8A%A0%E5%BA%8F%E5%8F%B7001 => Failed to connect to 101.89.117.144 port 38022: Connection refused"
批量在文件名加序号001
