string(365) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%BA%E4%BB%80%E4%B9%88%E6%8B%BC%E5%A4%9A%E5%A4%9A%E4%B8%8A%E7%A0%8D%E4%BB%B7%E5%BF%AB%E6%88%90%E5%8A%9F%E7%9A%84%E6%97%B6%E5%80%99%E9%82%80%E8%AF%B7%E6%96%B0%E7%94%A8%E6%88%B7%E6%B2%A1%E7%94%A8 => Failed to connect to 101.91.112.32 port 38195: Connection refused"
为什么拼多多上砍价快成功的时候邀请新用户没用
