string(247) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%BB%80%E4%B9%88%E6%95%B0%E5%AD%97%E9%80%82%E5%90%88%E5%8F%91%E7%BA%A2%E5%8C%85 => Failed to connect to 14.18.117.71 port 38041: Connection refused"
什么数字适合发红包
