string(279) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=wps%E8%AE%BA%E6%96%87%E5%A6%82%E4%BD%95%E5%BC%95%E7%94%A8%E6%96%87%E7%8C%AE%E6%A0%87%E6%B3%A8%E6%A0%BC%E5%BC%8F => Failed to connect to 101.89.143.195 port 38109: Connection refused"
wps论文如何引用文献标注格式
