string(240) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%BD%95%E5%83%8F%E5%86%85%E5%AD%98%E5%B0%8F%E7%9A%84%E8%BD%AF%E4%BB%B6 => Failed to connect to 125.88.227.171 port 38114: Connection refused"
录像内存小的软件
