string(276) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%B5%84%E6%9C%AC%E6%80%A7%E6%94%AF%E5%87%BA%E9%87%8C%E7%9A%84%E9%83%BD%E5%8C%85%E6%8B%AC%E4%BB%80%E4%B9%88 => Failed to connect to 101.89.117.144 port 38076: Connection refused"
资本性支出里的都包括什么
