string(274) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%86%99%E4%B8%80%E4%BB%BD%E7%AE%80%E5%8D%95%E7%9A%84%E6%8A%95%E6%A0%87%E4%B9%A6%E6%8B%9B%E7%94%B0%E5%9C%B0 => Failed to connect to 14.18.117.71 port 38133: Connection refused"
写一份简单的投标书招田地
