国家自然科学基金31400809;贵州省科技厅科学技术基金项目[2012]2366号;中央高校基本科研业务费专项资金2682015CX006;the National Natural Science Foundation of China,No.31400809;the Science and Technology Foundation of Guizhou Science and Technology Department,No.[2012]2366;the Fundamental Research Funds for the Central Universities,No.2682015CX006