string(285) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=xls%E4%BF%9D%E5%AD%98%E5%90%8E%E6%A0%BC%E5%BC%8F%E5%B0%B1%E6%B2%A1%E6%9C%89%E4%BA%86%E6%80%8E%E4%B9%88%E5%9B%9E%E4%BA%8B => Failed to connect to 14.18.46.51 port 38044: Connection refused"
xls保存后格式就没有了怎么回事
