string(303) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=36%E5%B2%81%E4%BA%86%E5%88%9D%E4%B8%AD%E6%AF%95%E4%B8%9A%E6%83%B3%E6%8F%90%E5%8D%87%E5%AD%A6%E5%8E%86%E6%9C%89%E5%BF%85%E8%A6%81%E5%90%97 => Failed to connect to 61.171.74.35 port 38041: Connection refused"
36岁了初中毕业想提升学历有必要吗
