string(337) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%8D%E4%BB%85%E6%8F%90%E5%8D%87%E4%BA%86%E8%87%AA%E5%B7%B1%E7%9A%84%E8%83%BD%E5%8A%9B%E8%BF%98%E9%94%BB%E7%82%BC%E4%BA%86%E8%87%AA%E5%B7%B1%E7%9A%84%E6%84%8F%E5%BF%97 => Failed to connect to 14.116.215.7 port 38230: Connection refused"
不仅提升了自己的能力还锻炼了自己的意志
