string(235) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=08%E7%89%88cad%E6%BF%80%E6%B4%BB%E7%A0%81%E6%9C%89%E9%97%AE%E9%A2%98 => Failed to connect to 101.89.120.29 port 38231: Connection refused"
08版cad激活码有问题
