supported by NSFC(No.11501237,No.11401246,No.11426112);the NSF of Fujian Province(No.2014J01019);the NSF of Guangdong Province(No.2014A030310087,No.2014A030310119);the Outstanding Young Teacher Training Program in Guangdong Universities;the Outstanding Young Innovative Talent Training Project in Guangdong Universities(No.2013LYM0086);the Science Technology Project of Huizhou City