string(244) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=2022%E5%88%9D%E7%BA%A7%E4%BC%9A%E8%AE%A1%E6%95%99%E6%9D%90%E6%94%B9%E5%8A%A8 => Failed to connect to 101.89.117.144 port 38022: Connection refused"
2022初级会计教材改动
