string(294) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%87%80%E5%88%A9%E6%B6%A6%E8%AE%A1%E7%AE%97%E5%85%AC%E5%BC%8F%E9%80%92%E5%BB%B6%E6%89%80%E5%BE%97%E7%A8%8E%E8%B4%B9%E7%94%A8 => Failed to connect to 101.89.159.206 port 38087: Connection refused"
净利润计算公式递延所得税费用
