string(186) "get document error:https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=cqc%E6%98%AF%E5%9B%BD%E4%BC%81%E5%90%97 => Connection timed out after 30000 milliseconds"
cqc是国企吗网!