string(312) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%BA%8C%E7%BB%B4%E7%A0%81%E7%94%9F%E6%88%90%E5%99%A8%E7%94%9F%E6%88%90%E7%9A%84%E4%BA%8C%E7%BB%B4%E7%A0%81%E4%BC%9A%E5%A4%B1%E6%95%88%E5%90%97 => Failed to connect to 101.89.159.206 port 38100: Connection refused"
二维码生成器生成的二维码会失效吗
