string(265) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%B1%9E%E4%BA%8E%E8%B5%84%E6%9C%AC%E6%80%A7%E6%94%AF%E5%87%BA%E7%9A%84%E9%A1%B9%E7%9B%AE%E6%9C%89 => Failed to connect to 14.18.117.71 port 38041: Connection refused"
属于资本性支出的项目有
