string(280) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E9%80%A0%E4%BB%B7%E5%B7%A5%E7%A8%8B%E5%B8%88%E6%95%99%E6%9D%902024%E5%B9%B4%E6%94%B9%E7%89%88%E4%BA%86%E5%90%97 => Failed to connect to 101.89.117.144 port 38208: Connection refused"
造价工程师教材2024年改版了吗
