国家自然科学基金81470764;吉林省科技厅重点科技攻关科技计划20140204066SF;大学生创新创业训练计划2-013B78356Supported by:The National Natural Science Foundation of China81470764;Vital Science and Technology Project Supported by Jilin Provincial Science and Technology Department20140204066SF;Undergraduate Training Programs for Innovation and Entrepreneurship2013B78356