string(258) "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%E6%80%8E%E4%B9%88%E8%AE%A1%E7%AE%97%E7%9A%84 => Failed to connect to 101.89.143.195 port 38109: Connection refused"
资本性支出怎么计算的
