supported by NSFC(No.11661014);Guangxi Natural Science Foundation(Nos.2016GXNSFCA380014,2016GXNSFDA380017);the Guangxi Science Research and Technology Development Project(No.1599005-2-13);the Scientific Research Foundation of Guangxi Education Department(No.KY2015ZD075)
The research was supported by the National Natural Science Foundation of China(11461010);the Guangxi Science Research and Technology Development Project(1599005-2-13);the Scientific Research Fund of Guangxi Education Department(KY2015ZD075)