string(265) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%AF%AB%E5%AD%90%E4%B9%A6%E5%86%99%E4%BD%9C%E6%89%8B%E6%B3%95%E6%AD%A3%E5%8F%8D%E5%AF%B9%E6%AF%94 => Failed to connect to 61.171.74.35 port 38041: Connection refused"
诫子书写作手法正反对比
