string(257) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%97%A2%E9%94%BB%E7%82%BC%E4%BA%86%E8%BA%AB%E4%BD%93%E5%8F%88%E9%99%B6%E5%86%B6%E4%BA%86 => Failed to connect to 101.91.112.32 port 38221: Connection refused"
既锻炼了身体又陶冶了
