string(248) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%8A%95%E8%B5%84%E4%B8%A4%E4%B8%87%E5%B7%A6%E5%8F%B3%E7%9A%84%E7%94%9F%E6%84%8F => Failed to connect to 101.91.112.32 port 38162: Connection refused"
投资两万左右的生意
