什么叫s2b2c模式网!
string(216) "get document error:https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%BB%80%E4%B9%88%E5%8F%ABs2b2c%E6%A8%A1%E5%BC%8F => Failed to connect to 14.116.215.7 port 38225: Connection refused"
什么叫s2b2c模式网!