string(266) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%9B%B4%E9%80%9A%E8%BD%A6%E5%BC%80%E5%A4%9A%E4%BC%9A%E5%BD%B1%E5%93%8D%E6%B5%81%E9%87%8F%E5%90%97 => Failed to connect to 101.89.120.29 port 38231: Connection refused"
直通车开多会影响流量吗
