string(255) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%8A%A5%E4%BB%B7%E5%8D%95%E5%9F%BA%E6%9C%AC%E6%A0%BC%E5%BC%8F%E6%9C%89%E5%93%AA%E4%BA%9B => Failed to connect to 14.18.46.51 port 38044: Connection refused"
报价单基本格式有哪些
