string(240) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%9C%B0%E6%8E%A8%E5%8D%95%E5%AD%90%E4%BB%8E%E5%93%AA%E9%87%8C%E6%8E%A5 => Failed to connect to 101.89.143.195 port 38109: Connection refused"
地推单子从哪里接
